Finding the Fourth Proportional to 76,003.12, 104,882.16 and 42,469.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,003.12 : 104,882.16 = 42,469.12 : x
2. Step 2: Convert to fraction form
   76,003.12/104,882.16 = 42,469.12/x
3. Step 3: Cross multiply
   76,003.12x = 104,882.16 × 42,469.12
4. Step 4: Simplify right side
   76,003.12x = 4,454,253,038.90
5. Step 5: Solve for x
   x = 4,454,253,038.90/76,003.12
6. Step 6: Final answer
   x = 58,606.19