Finding the Fourth Proportional to 112,650.96, 155,292.72 and 85,746.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,650.96 : 155,292.72 = 85,746.60 : x
2. Step 2: Convert to fraction form
   112,650.96/155,292.72 = 85,746.60/x
3. Step 3: Cross multiply
   112,650.96x = 155,292.72 × 85,746.60
4. Step 4: Simplify right side
   112,650.96x = 13,315,822,744.75
5. Step 5: Solve for x
   x = 13,315,822,744.75/112,650.96
6. Step 6: Final answer
   x = 118,204.25