Finding the Fourth Proportional to 111,296.74, 166,874.88 and 61,411.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,296.74 : 166,874.88 = 61,411.60 : x
2. Step 2: Convert to fraction form
   111,296.74/166,874.88 = 61,411.60/x
3. Step 3: Cross multiply
   111,296.74x = 166,874.88 × 61,411.60
4. Step 4: Simplify right side
   111,296.74x = 10,248,053,380.61
5. Step 5: Solve for x
   x = 10,248,053,380.61/111,296.74
6. Step 6: Final answer
   x = 92,078.65