Finding the Fourth Proportional to 111,547.88, 153,879 and 71,219.24

Step by Step Solution

1. Step 1: Write the proportion equation
   111,547.88 : 153,879 = 71,219.24 : x
2. Step 2: Convert to fraction form
   111,547.88/153,879 = 71,219.24/x
3. Step 3: Cross multiply
   111,547.88x = 153,879 × 71,219.24
4. Step 4: Simplify right side
   111,547.88x = 10,959,144,662.57
5. Step 5: Solve for x
   x = 10,959,144,662.57/111,547.88
6. Step 6: Final answer
   x = 98,246.11