Finding the Fourth Proportional to 12,563.91, 17,339.00 and 7,528.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,563.91 : 17,339.00 = 7,528.34 : x
2. Step 2: Convert to fraction form
   12,563.91/17,339.00 = 7,528.34/x
3. Step 3: Cross multiply
   12,563.91x = 17,339.00 × 7,528.34
4. Step 4: Simplify right side
   12,563.91x = 130,533,892.97
5. Step 5: Solve for x
   x = 130,533,892.97/12,563.91
6. Step 6: Final answer
   x = 10,389.59