Finding the Fourth Proportional to 111,957.83, 154,494.79 and 61,656.83

Step by Step Solution

1. Step 1: Write the proportion equation
   111,957.83 : 154,494.79 = 61,656.83 : x
2. Step 2: Convert to fraction form
   111,957.83/154,494.79 = 61,656.83/x
3. Step 3: Cross multiply
   111,957.83x = 154,494.79 × 61,656.83
4. Step 4: Simplify right side
   111,957.83x = 9,525,658,230.44
5. Step 5: Solve for x
   x = 9,525,658,230.44/111,957.83
6. Step 6: Final answer
   x = 85,082.56