Finding the Fourth Proportional to 112,748.92, 155,621.48 and 65,030.92

Step by Step Solution

1. Step 1: Write the proportion equation
   112,748.92 : 155,621.48 = 65,030.92 : x
2. Step 2: Convert to fraction form
   112,748.92/155,621.48 = 65,030.92/x
3. Step 3: Cross multiply
   112,748.92x = 155,621.48 × 65,030.92
4. Step 4: Simplify right side
   112,748.92x = 10,120,208,016.16
5. Step 5: Solve for x
   x = 10,120,208,016.16/112,748.92
6. Step 6: Final answer
   x = 89,758.80