Finding the Fourth Proportional to 56,625.69, 78,143.97 and 31,132.23

Step by Step Solution

1. Step 1: Write the proportion equation
   56,625.69 : 78,143.97 = 31,132.23 : x
2. Step 2: Convert to fraction form
   56,625.69/78,143.97 = 31,132.23/x
3. Step 3: Cross multiply
   56,625.69x = 78,143.97 × 31,132.23
4. Step 4: Simplify right side
   56,625.69x = 2,432,796,047.15
5. Step 5: Solve for x
   x = 2,432,796,047.15/56,625.69
6. Step 6: Final answer
   x = 42,962.77