Finding the Fourth Proportional to 102,180.72, 141,008.04 and 57,468.72

Step by Step Solution

1. Step 1: Write the proportion equation
   102,180.72 : 141,008.04 = 57,468.72 : x
2. Step 2: Convert to fraction form
   102,180.72/141,008.04 = 57,468.72/x
3. Step 3: Cross multiply
   102,180.72x = 141,008.04 × 57,468.72
4. Step 4: Simplify right side
   102,180.72x = 8,103,551,568.51
5. Step 5: Solve for x
   x = 8,103,551,568.51/102,180.72
6. Step 6: Final answer
   x = 79,306.07