Finding the Fourth Proportional to 111,605.50, 154,025.92 and 61,314.22

Step by Step Solution

1. Step 1: Write the proportion equation
   111,605.50 : 154,025.92 = 61,314.22 : x
2. Step 2: Convert to fraction form
   111,605.50/154,025.92 = 61,314.22/x
3. Step 3: Cross multiply
   111,605.50x = 154,025.92 × 61,314.22
4. Step 4: Simplify right side
   111,605.50x = 9,443,979,144.58
5. Step 5: Solve for x
   x = 9,443,979,144.58/111,605.50
6. Step 6: Final answer
   x = 84,619.30