Finding the Fourth Proportional to 102,184.72, 141,013.56 and 57,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   102,184.72 : 141,013.56 = 57,472.72 : x
2. Step 2: Convert to fraction form
   102,184.72/141,013.56 = 57,472.72/x
3. Step 3: Cross multiply
   102,184.72x = 141,013.56 × 57,472.72
4. Step 4: Simplify right side
   102,184.72x = 8,104,432,850.08
5. Step 5: Solve for x
   x = 8,104,432,850.08/102,184.72
6. Step 6: Final answer
   x = 79,311.59