Finding the Fourth Proportional to 111,165, 153,391.17 and 67,534.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,165 : 153,391.17 = 67,534.89 : x
2. Step 2: Convert to fraction form
   111,165/153,391.17 = 67,534.89/x
3. Step 3: Cross multiply
   111,165x = 153,391.17 × 67,534.89
4. Step 4: Simplify right side
   111,165x = 10,359,255,792.92
5. Step 5: Solve for x
   x = 10,359,255,792.92/111,165
6. Step 6: Final answer
   x = 93,188.11