Finding the Fourth Proportional to 96,477.69, 133,155.69 and 56,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   96,477.69 : 133,155.69 = 56,215.31 : x
2. Step 2: Convert to fraction form
   96,477.69/133,155.69 = 56,215.31/x
3. Step 3: Cross multiply
   96,477.69x = 133,155.69 × 56,215.31
4. Step 4: Simplify right side
   96,477.69x = 7,485,388,391.61
5. Step 5: Solve for x
   x = 7,485,388,391.61/96,477.69
6. Step 6: Final answer
   x = 77,586.73