Finding the Fourth Proportional to 96,429.60, 133,068.96 and 56,144.56

Step by Step Solution

1. Step 1: Write the proportion equation
   96,429.60 : 133,068.96 = 56,144.56 : x
2. Step 2: Convert to fraction form
   96,429.60/133,068.96 = 56,144.56/x
3. Step 3: Cross multiply
   96,429.60x = 133,068.96 × 56,144.56
4. Step 4: Simplify right side
   96,429.60x = 7,471,098,208.86
5. Step 5: Solve for x
   x = 7,471,098,208.86/96,429.60
6. Step 6: Final answer
   x = 77,477.23