Finding the Fourth Proportional to 9,019.35, 12,443.42 and 5,242.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.35 : 12,443.42 = 5,242.32 : x
2. Step 2: Convert to fraction form
   9,019.35/12,443.42 = 5,242.32/x
3. Step 3: Cross multiply
   9,019.35x = 12,443.42 × 5,242.32
4. Step 4: Simplify right side
   9,019.35x = 65,232,402.64
5. Step 5: Solve for x
   x = 65,232,402.64/9,019.35
6. Step 6: Final answer
   x = 7,232.49