Finding the Fourth Proportional to 111,168.68, 153,398.52 and 63,419.24

Step by Step Solution

1. Step 1: Write the proportion equation
   111,168.68 : 153,398.52 = 63,419.24 : x
2. Step 2: Convert to fraction form
   111,168.68/153,398.52 = 63,419.24/x
3. Step 3: Cross multiply
   111,168.68x = 153,398.52 × 63,419.24
4. Step 4: Simplify right side
   111,168.68x = 9,728,417,555.52
5. Step 5: Solve for x
   x = 9,728,417,555.52/111,168.68
6. Step 6: Final answer
   x = 87,510.42