Finding the Fourth Proportional to 99,334.62, 137,081.94 and 54,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,334.62 : 137,081.94 = 54,012.56 : x
2. Step 2: Convert to fraction form
   99,334.62/137,081.94 = 54,012.56/x
3. Step 3: Cross multiply
   99,334.62x = 137,081.94 × 54,012.56
4. Step 4: Simplify right side
   99,334.62x = 7,404,146,239.10
5. Step 5: Solve for x
   x = 7,404,146,239.10/99,334.62
6. Step 6: Final answer
   x = 74,537.42