Finding the Fourth Proportional to 111,659.60, 154,088.50 and 61,357.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,659.60 : 154,088.50 = 61,357.52 : x
2. Step 2: Convert to fraction form
   111,659.60/154,088.50 = 61,357.52/x
3. Step 3: Cross multiply
   111,659.60x = 154,088.50 × 61,357.52
4. Step 4: Simplify right side
   111,659.60x = 9,454,488,220.52
5. Step 5: Solve for x
   x = 9,454,488,220.52/111,659.60
6. Step 6: Final answer
   x = 84,672.42