Finding the Fourth Proportional to 112,399.98, 155,115.57 and 61,417.54

Step by Step Solution

1. Step 1: Write the proportion equation
   112,399.98 : 155,115.57 = 61,417.54 : x
2. Step 2: Convert to fraction form
   112,399.98/155,115.57 = 61,417.54/x
3. Step 3: Cross multiply
   112,399.98x = 155,115.57 × 61,417.54
4. Step 4: Simplify right side
   112,399.98x = 9,526,816,725.10
5. Step 5: Solve for x
   x = 9,526,816,725.10/112,399.98
6. Step 6: Final answer
   x = 84,758.17