Finding the Fourth Proportional to 111,644.15, 154,059.98 and 63,886.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111,644.15 : 154,059.98 = 63,886.55 : x
2. Step 2: Convert to fraction form
   111,644.15/154,059.98 = 63,886.55/x
3. Step 3: Cross multiply
   111,644.15x = 154,059.98 × 63,886.55
4. Step 4: Simplify right side
   111,644.15x = 9,842,360,004.69
5. Step 5: Solve for x
   x = 9,842,360,004.69/111,644.15
6. Step 6: Final answer
   x = 88,158.32