Finding the Fourth Proportional to 56,818.52, 78,348.02 and 38,681

Step by Step Solution

1. Step 1: Write the proportion equation
   56,818.52 : 78,348.02 = 38,681 : x
2. Step 2: Convert to fraction form
   56,818.52/78,348.02 = 38,681/x
3. Step 3: Cross multiply
   56,818.52x = 78,348.02 × 38,681
4. Step 4: Simplify right side
   56,818.52x = 3,030,579,761.62
5. Step 5: Solve for x
   x = 3,030,579,761.62/56,818.52
6. Step 6: Final answer
   x = 53,337.89