Finding the Fourth Proportional to 28,567.42, 42,834.71 and 15,223.98

Step by Step Solution

1. Step 1: Write the proportion equation
   28,567.42 : 42,834.71 = 15,223.98 : x
2. Step 2: Convert to fraction form
   28,567.42/42,834.71 = 15,223.98/x
3. Step 3: Cross multiply
   28,567.42x = 42,834.71 × 15,223.98
4. Step 4: Simplify right side
   28,567.42x = 652,114,967.04
5. Step 5: Solve for x
   x = 652,114,967.04/28,567.42
6. Step 6: Final answer
   x = 22,827.23