Finding the Fourth Proportional to 102,304.78, 141,184.43 and 56,366.31

Step by Step Solution

1. Step 1: Write the proportion equation
   102,304.78 : 141,184.43 = 56,366.31 : x
2. Step 2: Convert to fraction form
   102,304.78/141,184.43 = 56,366.31/x
3. Step 3: Cross multiply
   102,304.78x = 141,184.43 × 56,366.31
4. Step 4: Simplify right side
   102,304.78x = 7,958,045,348.55
5. Step 5: Solve for x
   x = 7,958,045,348.55/102,304.78
6. Step 6: Final answer
   x = 77,787.62