Finding the Fourth Proportional to 12,548.18, 17,317.86 and 7,511.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,548.18 : 17,317.86 = 7,511.87 : x
2. Step 2: Convert to fraction form
   12,548.18/17,317.86 = 7,511.87/x
3. Step 3: Cross multiply
   12,548.18x = 17,317.86 × 7,511.87
4. Step 4: Simplify right side
   12,548.18x = 130,089,513.00
5. Step 5: Solve for x
   x = 130,089,513.00/12,548.18
6. Step 6: Final answer
   x = 10,367.20