Finding the Fourth Proportional to 9,001.39, 12,421.88 and 5,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,001.39 : 12,421.88 = 5,022.50 : x
2. Step 2: Convert to fraction form
   9,001.39/12,421.88 = 5,022.50/x
3. Step 3: Cross multiply
   9,001.39x = 12,421.88 × 5,022.50
4. Step 4: Simplify right side
   9,001.39x = 62,388,892.30
5. Step 5: Solve for x
   x = 62,388,892.30/9,001.39
6. Step 6: Final answer
   x = 6,931.03