Finding the Fourth Proportional to 9,069.30, 12,515.94 and 5,090.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,069.30 : 12,515.94 = 5,090.76 : x
2. Step 2: Convert to fraction form
   9,069.30/12,515.94 = 5,090.76/x
3. Step 3: Cross multiply
   9,069.30x = 12,515.94 × 5,090.76
4. Step 4: Simplify right side
   9,069.30x = 63,715,646.71
5. Step 5: Solve for x
   x = 63,715,646.71/9,069.30
6. Step 6: Final answer
   x = 7,025.42