Finding the Fourth Proportional to 28,308.34, 39,066.33 and 16,375.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,308.34 : 39,066.33 = 16,375.42 : x
2. Step 2: Convert to fraction form
   28,308.34/39,066.33 = 16,375.42/x
3. Step 3: Cross multiply
   28,308.34x = 39,066.33 × 16,375.42
4. Step 4: Simplify right side
   28,308.34x = 639,727,561.61
5. Step 5: Solve for x
   x = 639,727,561.61/28,308.34
6. Step 6: Final answer
   x = 22,598.55