Finding the Fourth Proportional to 60,638.06, 83,650.42 and 40,521.92

Step by Step Solution

1. Step 1: Write the proportion equation
   60,638.06 : 83,650.42 = 40,521.92 : x
2. Step 2: Convert to fraction form
   60,638.06/83,650.42 = 40,521.92/x
3. Step 3: Cross multiply
   60,638.06x = 83,650.42 × 40,521.92
4. Step 4: Simplify right side
   60,638.06x = 3,389,675,627.21
5. Step 5: Solve for x
   x = 3,389,675,627.21/60,638.06
6. Step 6: Final answer
   x = 55,900.13