Finding the Fourth Proportional to 111,165.69, 153,423.95 and 68,170.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,165.69 : 153,423.95 = 68,170.89 : x
2. Step 2: Convert to fraction form
   111,165.69/153,423.95 = 68,170.89/x
3. Step 3: Cross multiply
   111,165.69x = 153,423.95 × 68,170.89
4. Step 4: Simplify right side
   111,165.69x = 10,459,046,877.96
5. Step 5: Solve for x
   x = 10,459,046,877.96/111,165.69
6. Step 6: Final answer
   x = 94,085.21