Finding the Fourth Proportional to 10,339.17, 15,499.35 and 3,763.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,339.17 : 15,499.35 = 3,763.80 : x
2. Step 2: Convert to fraction form
   10,339.17/15,499.35 = 3,763.80/x
3. Step 3: Cross multiply
   10,339.17x = 15,499.35 × 3,763.80
4. Step 4: Simplify right side
   10,339.17x = 58,336,453.53
5. Step 5: Solve for x
   x = 58,336,453.53/10,339.17
6. Step 6: Final answer
   x = 5,642.28