Finding the Fourth Proportional to 22,609.98, 31,200.93 and 12,538.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,609.98 : 31,200.93 = 12,538.53 : x
2. Step 2: Convert to fraction form
   22,609.98/31,200.93 = 12,538.53/x
3. Step 3: Cross multiply
   22,609.98x = 31,200.93 × 12,538.53
4. Step 4: Simplify right side
   22,609.98x = 391,213,796.83
5. Step 5: Solve for x
   x = 391,213,796.83/22,609.98
6. Step 6: Final answer
   x = 17,302.70