Finding the Fourth Proportional to 56,302.50, 77,698.17 and 31,151.46

Step by Step Solution

1. Step 1: Write the proportion equation
   56,302.50 : 77,698.17 = 31,151.46 : x
2. Step 2: Convert to fraction form
   56,302.50/77,698.17 = 31,151.46/x
3. Step 3: Cross multiply
   56,302.50x = 77,698.17 × 31,151.46
4. Step 4: Simplify right side
   56,302.50x = 2,420,411,434.83
5. Step 5: Solve for x
   x = 2,420,411,434.83/56,302.50
6. Step 6: Final answer
   x = 42,989.41