Finding the Fourth Proportional to 111,941.82, 154,486.74 and 61,640.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111,941.82 : 154,486.74 = 61,640.82 : x
2. Step 2: Convert to fraction form
   111,941.82/154,486.74 = 61,640.82/x
3. Step 3: Cross multiply
   111,941.82x = 154,486.74 × 61,640.82
4. Step 4: Simplify right side
   111,941.82x = 9,522,689,332.73
5. Step 5: Solve for x
   x = 9,522,689,332.73/111,941.82
6. Step 6: Final answer
   x = 85,068.20