Finding the Fourth Proportional to 10,498.73, 15,748.91 and 3,478.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.73 : 15,748.91 = 3,478.46 : x
2. Step 2: Convert to fraction form
   10,498.73/15,748.91 = 3,478.46/x
3. Step 3: Cross multiply
   10,498.73x = 15,748.91 × 3,478.46
4. Step 4: Simplify right side
   10,498.73x = 54,781,857.34
5. Step 5: Solve for x
   x = 54,781,857.34/10,498.73
6. Step 6: Final answer
   x = 5,217.95