Finding the Fourth Proportional to 111,985.38, 154,539.83 and 61,684.38

Step by Step Solution

1. Step 1: Write the proportion equation
   111,985.38 : 154,539.83 = 61,684.38 : x
2. Step 2: Convert to fraction form
   111,985.38/154,539.83 = 61,684.38/x
3. Step 3: Cross multiply
   111,985.38x = 154,539.83 × 61,684.38
4. Step 4: Simplify right side
   111,985.38x = 9,532,693,598.86
5. Step 5: Solve for x
   x = 9,532,693,598.86/111,985.38
6. Step 6: Final answer
   x = 85,124.45