Finding the Fourth Proportional to 111,450.69, 153,861.62 and 85,901.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,450.69 : 153,861.62 = 85,901.06 : x
2. Step 2: Convert to fraction form
   111,450.69/153,861.62 = 85,901.06/x
3. Step 3: Cross multiply
   111,450.69x = 153,861.62 × 85,901.06
4. Step 4: Simplify right side
   111,450.69x = 13,216,876,850.72
5. Step 5: Solve for x
   x = 13,216,876,850.72/111,450.69
6. Step 6: Final answer
   x = 118,589.46