Finding the Fourth Proportional to 111,426.83, 153,768.12 and 60,439.43

Step by Step Solution

1. Step 1: Write the proportion equation
   111,426.83 : 153,768.12 = 60,439.43 : x
2. Step 2: Convert to fraction form
   111,426.83/153,768.12 = 60,439.43/x
3. Step 3: Cross multiply
   111,426.83x = 153,768.12 × 60,439.43
4. Step 4: Simplify right side
   111,426.83x = 9,293,658,022.72
5. Step 5: Solve for x
   x = 9,293,658,022.72/111,426.83
6. Step 6: Final answer
   x = 83,405.93