Finding the Fourth Proportional to 56,550.69, 78,041.43 and 31,058.70

Step by Step Solution

1. Step 1: Write the proportion equation
   56,550.69 : 78,041.43 = 31,058.70 : x
2. Step 2: Convert to fraction form
   56,550.69/78,041.43 = 31,058.70/x
3. Step 3: Cross multiply
   56,550.69x = 78,041.43 × 31,058.70
4. Step 4: Simplify right side
   56,550.69x = 2,423,865,361.94
5. Step 5: Solve for x
   x = 2,423,865,361.94/56,550.69
6. Step 6: Final answer
   x = 42,861.82