Finding the Fourth Proportional to 17,664.94, 26,498.22 and 12,493.90

Step by Step Solution

1. Step 1: Write the proportion equation
   17,664.94 : 26,498.22 = 12,493.90 : x
2. Step 2: Convert to fraction form
   17,664.94/26,498.22 = 12,493.90/x
3. Step 3: Cross multiply
   17,664.94x = 26,498.22 × 12,493.90
4. Step 4: Simplify right side
   17,664.94x = 331,066,110.86
5. Step 5: Solve for x
   x = 331,066,110.86/17,664.94
6. Step 6: Final answer
   x = 18,741.42