Finding the Fourth Proportional to 22,308.86, 30,781.06 and 13,352.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.86 : 30,781.06 = 13,352.96 : x
2. Step 2: Convert to fraction form
   22,308.86/30,781.06 = 13,352.96/x
3. Step 3: Cross multiply
   22,308.86x = 30,781.06 × 13,352.96
4. Step 4: Simplify right side
   22,308.86x = 411,018,075.65
5. Step 5: Solve for x
   x = 411,018,075.65/22,308.86
6. Step 6: Final answer
   x = 18,423.99