Finding the Fourth Proportional to 22,457.34, 30,992.76 and 13,026.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,457.34 : 30,992.76 = 13,026.78 : x
2. Step 2: Convert to fraction form
   22,457.34/30,992.76 = 13,026.78/x
3. Step 3: Cross multiply
   22,457.34x = 30,992.76 × 13,026.78
4. Step 4: Simplify right side
   22,457.34x = 403,735,866.11
5. Step 5: Solve for x
   x = 403,735,866.11/22,457.34
6. Step 6: Final answer
   x = 17,977.90