Finding the Fourth Proportional to 12,755.37, 17,598.06 and 7,972.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.37 : 17,598.06 = 7,972.05 : x
2. Step 2: Convert to fraction form
   12,755.37/17,598.06 = 7,972.05/x
3. Step 3: Cross multiply
   12,755.37x = 17,598.06 × 7,972.05
4. Step 4: Simplify right side
   12,755.37x = 140,292,614.22
5. Step 5: Solve for x
   x = 140,292,614.22/12,755.37
6. Step 6: Final answer
   x = 10,998.71