Finding the Fourth Proportional to 10,424.24, 15,619.88 and 7,126

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.24 : 15,619.88 = 7,126 : x
2. Step 2: Convert to fraction form
   10,424.24/15,619.88 = 7,126/x
3. Step 3: Cross multiply
   10,424.24x = 15,619.88 × 7,126
4. Step 4: Simplify right side
   10,424.24x = 111,307,264.88
5. Step 5: Solve for x
   x = 111,307,264.88/10,424.24
6. Step 6: Final answer
   x = 10,677.73