Finding the Fourth Proportional to 99,298.14, 137,032.02 and 53,976.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99,298.14 : 137,032.02 = 53,976.48 : x
2. Step 2: Convert to fraction form
   99,298.14/137,032.02 = 53,976.48/x
3. Step 3: Cross multiply
   99,298.14x = 137,032.02 × 53,976.48
4. Step 4: Simplify right side
   99,298.14x = 7,396,506,086.89
5. Step 5: Solve for x
   x = 7,396,506,086.89/99,298.14
6. Step 6: Final answer
   x = 74,487.86