Finding the Fourth Proportional to 9,069.27, 12,515.55 and 5,090.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,069.27 : 12,515.55 = 5,090.40 : x
2. Step 2: Convert to fraction form
   9,069.27/12,515.55 = 5,090.40/x
3. Step 3: Cross multiply
   9,069.27x = 12,515.55 × 5,090.40
4. Step 4: Simplify right side
   9,069.27x = 63,709,155.72
5. Step 5: Solve for x
   x = 63,709,155.72/9,069.27
6. Step 6: Final answer
   x = 7,024.73