Finding the Fourth Proportional to 22,462.23, 30,997.33 and 12,390.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,462.23 : 30,997.33 = 12,390.45 : x
2. Step 2: Convert to fraction form
   22,462.23/30,997.33 = 12,390.45/x
3. Step 3: Cross multiply
   22,462.23x = 30,997.33 × 12,390.45
4. Step 4: Simplify right side
   22,462.23x = 384,070,867.50
5. Step 5: Solve for x
   x = 384,070,867.50/22,462.23
6. Step 6: Final answer
   x = 17,098.52