Finding the Fourth Proportional to 56,298.06, 77,691.27 and 31,151.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,298.06 : 77,691.27 = 31,151.34 : x
2. Step 2: Convert to fraction form
   56,298.06/77,691.27 = 31,151.34/x
3. Step 3: Cross multiply
   56,298.06x = 77,691.27 × 31,151.34
4. Step 4: Simplify right side
   56,298.06x = 2,420,187,166.80
5. Step 5: Solve for x
   x = 2,420,187,166.80/56,298.06
6. Step 6: Final answer
   x = 42,988.82