Finding the Fourth Proportional to 111,962.43, 154,497.98 and 66,633.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,962.43 : 154,497.98 = 66,633.10 : x
2. Step 2: Convert to fraction form
   111,962.43/154,497.98 = 66,633.10/x
3. Step 3: Cross multiply
   111,962.43x = 154,497.98 × 66,633.10
4. Step 4: Simplify right side
   111,962.43x = 10,294,679,131.48
5. Step 5: Solve for x
   x = 10,294,679,131.48/111,962.43
6. Step 6: Final answer
   x = 91,947.62