Finding the Fourth Proportional to 112,443.46, 155,171.61 and 61,456.18

Step by Step Solution

1. Step 1: Write the proportion equation
   112,443.46 : 155,171.61 = 61,456.18 : x
2. Step 2: Convert to fraction form
   112,443.46/155,171.61 = 61,456.18/x
3. Step 3: Cross multiply
   112,443.46x = 155,171.61 × 61,456.18
4. Step 4: Simplify right side
   112,443.46x = 9,536,254,395.05
5. Step 5: Solve for x
   x = 9,536,254,395.05/112,443.46
6. Step 6: Final answer
   x = 84,809.33