Finding the Fourth Proportional to 28,168.22, 42,271.50 and 15,029.84

Step by Step Solution

1. Step 1: Write the proportion equation
   28,168.22 : 42,271.50 = 15,029.84 : x
2. Step 2: Convert to fraction form
   28,168.22/42,271.50 = 15,029.84/x
3. Step 3: Cross multiply
   28,168.22x = 42,271.50 × 15,029.84
4. Step 4: Simplify right side
   28,168.22x = 635,333,881.56
5. Step 5: Solve for x
   x = 635,333,881.56/28,168.22
6. Step 6: Final answer
   x = 22,554.99