Finding the Fourth Proportional to 112,773.90, 155,644.56 and 65,017.92

Step by Step Solution

1. Step 1: Write the proportion equation
   112,773.90 : 155,644.56 = 65,017.92 : x
2. Step 2: Convert to fraction form
   112,773.90/155,644.56 = 65,017.92/x
3. Step 3: Cross multiply
   112,773.90x = 155,644.56 × 65,017.92
4. Step 4: Simplify right side
   112,773.90x = 10,119,685,550.52
5. Step 5: Solve for x
   x = 10,119,685,550.52/112,773.90
6. Step 6: Final answer
   x = 89,734.29