Finding the Fourth Proportional to 56,607.27, 78,118.08 and 31,113.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,607.27 : 78,118.08 = 31,113.62 : x
2. Step 2: Convert to fraction form
   56,607.27/78,118.08 = 31,113.62/x
3. Step 3: Cross multiply
   56,607.27x = 78,118.08 × 31,113.62
4. Step 4: Simplify right side
   56,607.27x = 2,430,536,256.25
5. Step 5: Solve for x
   x = 2,430,536,256.25/56,607.27
6. Step 6: Final answer
   x = 42,936.82