Finding the Fourth Proportional to 60,156, 90,174.24 and 40,389.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,156 : 90,174.24 = 40,389.12 : x
2. Step 2: Convert to fraction form
   60,156/90,174.24 = 40,389.12/x
3. Step 3: Cross multiply
   60,156x = 90,174.24 × 40,389.12
4. Step 4: Simplify right side
   60,156x = 3,642,058,200.27
5. Step 5: Solve for x
   x = 3,642,058,200.27/60,156
6. Step 6: Final answer
   x = 60,543.56