Finding the Fourth Proportional to 9,010.79, 13,506.61 and 5,314.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,010.79 : 13,506.61 = 5,314.76 : x
2. Step 2: Convert to fraction form
   9,010.79/13,506.61 = 5,314.76/x
3. Step 3: Cross multiply
   9,010.79x = 13,506.61 × 5,314.76
4. Step 4: Simplify right side
   9,010.79x = 71,784,309.74
5. Step 5: Solve for x
   x = 71,784,309.74/9,010.79
6. Step 6: Final answer
   x = 7,966.49