Finding the Fourth Proportional to 56,691.24, 78,233.94 and 31,540.76

Step by Step Solution

1. Step 1: Write the proportion equation
   56,691.24 : 78,233.94 = 31,540.76 : x
2. Step 2: Convert to fraction form
   56,691.24/78,233.94 = 31,540.76/x
3. Step 3: Cross multiply
   56,691.24x = 78,233.94 × 31,540.76
4. Step 4: Simplify right side
   56,691.24x = 2,467,557,925.39
5. Step 5: Solve for x
   x = 2,467,557,925.39/56,691.24
6. Step 6: Final answer
   x = 43,526.26