Finding the Fourth Proportional to 10,434.02, 15,650.82 and 2,642.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.02 : 15,650.82 = 2,642.63 : x
2. Step 2: Convert to fraction form
   10,434.02/15,650.82 = 2,642.63/x
3. Step 3: Cross multiply
   10,434.02x = 15,650.82 × 2,642.63
4. Step 4: Simplify right side
   10,434.02x = 41,359,248.20
5. Step 5: Solve for x
   x = 41,359,248.20/10,434.02
6. Step 6: Final answer
   x = 3,963.89