Finding the Fourth Proportional to 99,435,637,269.27, 137,221,234,383.73 and 53,709,912,410.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,435,637,269.27 : 137,221,234,383.73 = 53,709,912,410.56 : x
2. Step 2: Convert to fraction form
   99,435,637,269.27/137,221,234,383.73 = 53,709,912,410.56/x
3. Step 3: Cross multiply
   99,435,637,269.27x = 137,221,234,383.73 × 53,709,912,410.56
4. Step 4: Simplify right side
   99,435,637,269.27x = 7,370,140,479,619,061,514,240
5. Step 5: Solve for x
   x = 7,370,140,479,619,061,514,240/99,435,637,269.27
6. Step 6: Final answer
   x = 74,119,708,808.83