Finding the Fourth Proportional to 111,772.88, 154,244.04 and 61,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,772.88 : 154,244.04 = 61,472.72 : x
2. Step 2: Convert to fraction form
   111,772.88/154,244.04 = 61,472.72/x
3. Step 3: Cross multiply
   111,772.88x = 154,244.04 × 61,472.72
4. Step 4: Simplify right side
   111,772.88x = 9,481,800,682.59
5. Step 5: Solve for x
   x = 9,481,800,682.59/111,772.88
6. Step 6: Final answer
   x = 84,830.96