Finding the Fourth Proportional to 111,966.18, 154,506.24 and 61,665.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,966.18 : 154,506.24 = 61,665.18 : x
2. Step 2: Convert to fraction form
   111,966.18/154,506.24 = 61,665.18/x
3. Step 3: Cross multiply
   111,966.18x = 154,506.24 × 61,665.18
4. Step 4: Simplify right side
   111,966.18x = 9,527,655,100.72
5. Step 5: Solve for x
   x = 9,527,655,100.72/111,966.18
6. Step 6: Final answer
   x = 85,094.04