Finding the Fourth Proportional to 56,613.06, 78,124.37 and 31,119.39

Step by Step Solution

1. Step 1: Write the proportion equation
   56,613.06 : 78,124.37 = 31,119.39 : x
2. Step 2: Convert to fraction form
   56,613.06/78,124.37 = 31,119.39/x
3. Step 3: Cross multiply
   56,613.06x = 78,124.37 × 31,119.39
4. Step 4: Simplify right side
   56,613.06x = 2,431,182,582.94
5. Step 5: Solve for x
   x = 2,431,182,582.94/56,613.06
6. Step 6: Final answer
   x = 42,943.85