Finding the Fourth Proportional to 152,534.48, 228,665.60 and 77,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,534.48 : 228,665.60 = 77,612.72 : x
2. Step 2: Convert to fraction form
   152,534.48/228,665.60 = 77,612.72/x
3. Step 3: Cross multiply
   152,534.48x = 228,665.60 × 77,612.72
4. Step 4: Simplify right side
   152,534.48x = 17,747,359,186.43
5. Step 5: Solve for x
   x = 17,747,359,186.43/152,534.48
6. Step 6: Final answer
   x = 116,349.82