Finding the Fourth Proportional to 10,499.90, 15,755.31 and 4,264.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.90 : 15,755.31 = 4,264.52 : x
2. Step 2: Convert to fraction form
   10,499.90/15,755.31 = 4,264.52/x
3. Step 3: Cross multiply
   10,499.90x = 15,755.31 × 4,264.52
4. Step 4: Simplify right side
   10,499.90x = 67,188,755.82
5. Step 5: Solve for x
   x = 67,188,755.82/10,499.90
6. Step 6: Final answer
   x = 6,398.99