Finding the Fourth Proportional to 111,986.42, 154,541.27 and 61,685.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,986.42 : 154,541.27 = 61,685.42 : x
2. Step 2: Convert to fraction form
   111,986.42/154,541.27 = 61,685.42/x
3. Step 3: Cross multiply
   111,986.42x = 154,541.27 × 61,685.42
4. Step 4: Simplify right side
   111,986.42x = 9,532,942,838.86
5. Step 5: Solve for x
   x = 9,532,942,838.86/111,986.42
6. Step 6: Final answer
   x = 85,125.88