Finding the Fourth Proportional to 152,141.78, 228,265.27 and 57,399.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,141.78 : 228,265.27 = 57,399.12 : x
2. Step 2: Convert to fraction form
   152,141.78/228,265.27 = 57,399.12/x
3. Step 3: Cross multiply
   152,141.78x = 228,265.27 × 57,399.12
4. Step 4: Simplify right side
   152,141.78x = 13,102,225,624.56
5. Step 5: Solve for x
   x = 13,102,225,624.56/152,141.78
6. Step 6: Final answer
   x = 86,118.52