Finding the Fourth Proportional to 102,234.72, 141,085.04 and 56,299.52

Step by Step Solution

1. Step 1: Write the proportion equation
   102,234.72 : 141,085.04 = 56,299.52 : x
2. Step 2: Convert to fraction form
   102,234.72/141,085.04 = 56,299.52/x
3. Step 3: Cross multiply
   102,234.72x = 141,085.04 × 56,299.52
4. Step 4: Simplify right side
   102,234.72x = 7,943,020,031.18
5. Step 5: Solve for x
   x = 7,943,020,031.18/102,234.72
6. Step 6: Final answer
   x = 77,693.96