Finding the Fourth Proportional to 12,301.10, 16,970.63 and 7,577.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,301.10 : 16,970.63 = 7,577.18 : x
2. Step 2: Convert to fraction form
   12,301.10/16,970.63 = 7,577.18/x
3. Step 3: Cross multiply
   12,301.10x = 16,970.63 × 7,577.18
4. Step 4: Simplify right side
   12,301.10x = 128,589,395.48
5. Step 5: Solve for x
   x = 128,589,395.48/12,301.10
6. Step 6: Final answer
   x = 10,453.49