Finding the Fourth Proportional to 23,008.55, 31,749.98 and 12,935.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,008.55 : 31,749.98 = 12,935.07 : x
2. Step 2: Convert to fraction form
   23,008.55/31,749.98 = 12,935.07/x
3. Step 3: Cross multiply
   23,008.55x = 31,749.98 × 12,935.07
4. Step 4: Simplify right side
   23,008.55x = 410,688,149.12
5. Step 5: Solve for x
   x = 410,688,149.12/23,008.55
6. Step 6: Final answer
   x = 17,849.38