Finding the Fourth Proportional to 9,326.34, 12,870.27 and 5,134.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.34 : 12,870.27 = 5,134.50 : x
2. Step 2: Convert to fraction form
   9,326.34/12,870.27 = 5,134.50/x
3. Step 3: Cross multiply
   9,326.34x = 12,870.27 × 5,134.50
4. Step 4: Simplify right side
   9,326.34x = 66,082,401.32
5. Step 5: Solve for x
   x = 66,082,401.32/9,326.34
6. Step 6: Final answer
   x = 7,085.57