Finding the Fourth Proportional to 111,665.69, 154,179.10 and 68,702.99

Step by Step Solution

1. Step 1: Write the proportion equation
   111,665.69 : 154,179.10 = 68,702.99 : x
2. Step 2: Convert to fraction form
   111,665.69/154,179.10 = 68,702.99/x
3. Step 3: Cross multiply
   111,665.69x = 154,179.10 × 68,702.99
4. Step 4: Simplify right side
   111,665.69x = 10,592,564,094.04
5. Step 5: Solve for x
   x = 10,592,564,094.04/111,665.69
6. Step 6: Final answer
   x = 94,859.61