Finding the Fourth Proportional to 13,028.67, 19,541.88 and 5,126.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,028.67 : 19,541.88 = 5,126.72 : x
2. Step 2: Convert to fraction form
   13,028.67/19,541.88 = 5,126.72/x
3. Step 3: Cross multiply
   13,028.67x = 19,541.88 × 5,126.72
4. Step 4: Simplify right side
   13,028.67x = 100,185,649.32
5. Step 5: Solve for x
   x = 100,185,649.32/13,028.67
6. Step 6: Final answer
   x = 7,689.63