Finding the Fourth Proportional to 56,625.69, 78,144.96 and 31,133.13

Step by Step Solution

1. Step 1: Write the proportion equation
   56,625.69 : 78,144.96 = 31,133.13 : x
2. Step 2: Convert to fraction form
   56,625.69/78,144.96 = 31,133.13/x
3. Step 3: Cross multiply
   56,625.69x = 78,144.96 × 31,133.13
4. Step 4: Simplify right side
   56,625.69x = 2,432,897,198.52
5. Step 5: Solve for x
   x = 2,432,897,198.52/56,625.69
6. Step 6: Final answer
   x = 42,964.55