Finding the Fourth Proportional to 13,250.78, 18,284.91 and 7,948.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,250.78 : 18,284.91 = 7,948.52 : x
2. Step 2: Convert to fraction form
   13,250.78/18,284.91 = 7,948.52/x
3. Step 3: Cross multiply
   13,250.78x = 18,284.91 × 7,948.52
4. Step 4: Simplify right side
   13,250.78x = 145,337,972.83
5. Step 5: Solve for x
   x = 145,337,972.83/13,250.78
6. Step 6: Final answer
   x = 10,968.26