Finding the Fourth Proportional to 111,526.12, 153,854.71 and 71,219.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,526.12 : 153,854.71 = 71,219.71 : x
2. Step 2: Convert to fraction form
   111,526.12/153,854.71 = 71,219.71/x
3. Step 3: Cross multiply
   111,526.12x = 153,854.71 × 71,219.71
4. Step 4: Simplify right side
   111,526.12x = 10,957,487,828.33
5. Step 5: Solve for x
   x = 10,957,487,828.33/111,526.12
6. Step 6: Final answer
   x = 98,250.42