Finding the Fourth Proportional to 56,600.18, 78,103.16 and 31,106.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,600.18 : 78,103.16 = 31,106.27 : x
2. Step 2: Convert to fraction form
   56,600.18/78,103.16 = 31,106.27/x
3. Step 3: Cross multiply
   56,600.18x = 78,103.16 × 31,106.27
4. Step 4: Simplify right side
   56,600.18x = 2,429,497,436.77
5. Step 5: Solve for x
   x = 2,429,497,436.77/56,600.18
6. Step 6: Final answer
   x = 42,923.85