Finding the Fourth Proportional to 56,597.50, 78,100.79 and 31,103.33

Step by Step Solution

1. Step 1: Write the proportion equation
   56,597.50 : 78,100.79 = 31,103.33 : x
2. Step 2: Convert to fraction form
   56,597.50/78,100.79 = 31,103.33/x
3. Step 3: Cross multiply
   56,597.50x = 78,100.79 × 31,103.33
4. Step 4: Simplify right side
   56,597.50x = 2,429,194,098.61
5. Step 5: Solve for x
   x = 2,429,194,098.61/56,597.50
6. Step 6: Final answer
   x = 42,920.52