Finding the Fourth Proportional to 111,941.02, 154,477.83 and 61,640.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,941.02 : 154,477.83 = 61,640.02 : x
2. Step 2: Convert to fraction form
   111,941.02/154,477.83 = 61,640.02/x
3. Step 3: Cross multiply
   111,941.02x = 154,477.83 × 61,640.02
4. Step 4: Simplify right side
   111,941.02x = 9,522,016,530.76
5. Step 5: Solve for x
   x = 9,522,016,530.76/111,941.02
6. Step 6: Final answer
   x = 85,062.80