Finding the Fourth Proportional to 23,700.64, 32,706.78 and 13,090.22

Step by Step Solution

1. Step 1: Write the proportion equation
   23,700.64 : 32,706.78 = 13,090.22 : x
2. Step 2: Convert to fraction form
   23,700.64/32,706.78 = 13,090.22/x
3. Step 3: Cross multiply
   23,700.64x = 32,706.78 × 13,090.22
4. Step 4: Simplify right side
   23,700.64x = 428,138,945.69
5. Step 5: Solve for x
   x = 428,138,945.69/23,700.64
6. Step 6: Final answer
   x = 18,064.45