Finding the Fourth Proportional to 112,411.62, 155,123.24 and 61,423.55

Step by Step Solution

1. Step 1: Write the proportion equation
   112,411.62 : 155,123.24 = 61,423.55 : x
2. Step 2: Convert to fraction form
   112,411.62/155,123.24 = 61,423.55/x
3. Step 3: Cross multiply
   112,411.62x = 155,123.24 × 61,423.55
4. Step 4: Simplify right side
   112,411.62x = 9,528,219,005.57
5. Step 5: Solve for x
   x = 9,528,219,005.57/112,411.62
6. Step 6: Final answer
   x = 84,761.87