Finding the Fourth Proportional to 13,522.10, 20,290.79 and 7,281.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,522.10 : 20,290.79 = 7,281.98 : x
2. Step 2: Convert to fraction form
   13,522.10/20,290.79 = 7,281.98/x
3. Step 3: Cross multiply
   13,522.10x = 20,290.79 × 7,281.98
4. Step 4: Simplify right side
   13,522.10x = 147,757,090.55
5. Step 5: Solve for x
   x = 147,757,090.55/13,522.10
6. Step 6: Final answer
   x = 10,927.08