Finding the Fourth Proportional to 82,899.76, 124,245.60 and 65,300.08

Step by Step Solution

1. Step 1: Write the proportion equation
   82,899.76 : 124,245.60 = 65,300.08 : x
2. Step 2: Convert to fraction form
   82,899.76/124,245.60 = 65,300.08/x
3. Step 3: Cross multiply
   82,899.76x = 124,245.60 × 65,300.08
4. Step 4: Simplify right side
   82,899.76x = 8,113,247,619.65
5. Step 5: Solve for x
   x = 8,113,247,619.65/82,899.76
6. Step 6: Final answer
   x = 97,868.17