Finding the Fourth Proportional to 98,836.72, 148,081.56 and 82,303.12

Step by Step Solution

1. Step 1: Write the proportion equation
   98,836.72 : 148,081.56 = 82,303.12 : x
2. Step 2: Convert to fraction form
   98,836.72/148,081.56 = 82,303.12/x
3. Step 3: Cross multiply
   98,836.72x = 148,081.56 × 82,303.12
4. Step 4: Simplify right side
   98,836.72x = 12,187,574,402.47
5. Step 5: Solve for x
   x = 12,187,574,402.47/98,836.72
6. Step 6: Final answer
   x = 123,310.19