Finding the Fourth Proportional to 54,613.80, 81,871.20 and 37,981.62

Step by Step Solution

1. Step 1: Write the proportion equation
   54,613.80 : 81,871.20 = 37,981.62 : x
2. Step 2: Convert to fraction form
   54,613.80/81,871.20 = 37,981.62/x
3. Step 3: Cross multiply
   54,613.80x = 81,871.20 × 37,981.62
4. Step 4: Simplify right side
   54,613.80x = 3,109,600,807.34
5. Step 5: Solve for x
   x = 3,109,600,807.34/54,613.80
6. Step 6: Final answer
   x = 56,938.00