Finding the Fourth Proportional to 76,135, 114,247.50 and 42,429.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,135 : 114,247.50 = 42,429.16 : x
2. Step 2: Convert to fraction form
   76,135/114,247.50 = 42,429.16/x
3. Step 3: Cross multiply
   76,135x = 114,247.50 × 42,429.16
4. Step 4: Simplify right side
   76,135x = 4,847,425,457.10
5. Step 5: Solve for x
   x = 4,847,425,457.10/76,135
6. Step 6: Final answer
   x = 63,668.82