Finding the Fourth Proportional to 98,807.82, 148,230.45 and 39,648.15

Step by Step Solution

1. Step 1: Write the proportion equation
   98,807.82 : 148,230.45 = 39,648.15 : x
2. Step 2: Convert to fraction form
   98,807.82/148,230.45 = 39,648.15/x
3. Step 3: Cross multiply
   98,807.82x = 148,230.45 × 39,648.15
4. Step 4: Simplify right side
   98,807.82x = 5,877,063,116.17
5. Step 5: Solve for x
   x = 5,877,063,116.17/98,807.82
6. Step 6: Final answer
   x = 59,479.74