Finding the Fourth Proportional to 112,401.64, 155,112.42 and 62,105.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,401.64 : 155,112.42 = 62,105.32 : x
2. Step 2: Convert to fraction form
   112,401.64/155,112.42 = 62,105.32/x
3. Step 3: Cross multiply
   112,401.64x = 155,112.42 × 62,105.32
4. Step 4: Simplify right side
   112,401.64x = 9,633,306,480.07
5. Step 5: Solve for x
   x = 9,633,306,480.07/112,401.64
6. Step 6: Final answer
   x = 85,704.32