Finding the Fourth Proportional to 60,783.71, 83,815.39 and 39,523.55

Step by Step Solution

1. Step 1: Write the proportion equation
   60,783.71 : 83,815.39 = 39,523.55 : x
2. Step 2: Convert to fraction form
   60,783.71/83,815.39 = 39,523.55/x
3. Step 3: Cross multiply
   60,783.71x = 83,815.39 × 39,523.55
4. Step 4: Simplify right side
   60,783.71x = 3,312,681,757.43
5. Step 5: Solve for x
   x = 3,312,681,757.43/60,783.71
6. Step 6: Final answer
   x = 54,499.50