Finding the Fourth Proportional to 60,719.15, 83,763.83 and 39,490.67

Step by Step Solution

1. Step 1: Write the proportion equation
   60,719.15 : 83,763.83 = 39,490.67 : x
2. Step 2: Convert to fraction form
   60,719.15/83,763.83 = 39,490.67/x
3. Step 3: Cross multiply
   60,719.15x = 83,763.83 × 39,490.67
4. Step 4: Simplify right side
   60,719.15x = 3,307,890,076.60
5. Step 5: Solve for x
   x = 3,307,890,076.60/60,719.15
6. Step 6: Final answer
   x = 54,478.53