Finding the Fourth Proportional to 28,530.34, 42,801.98 and 15,382.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,530.34 : 42,801.98 = 15,382.42 : x
2. Step 2: Convert to fraction form
   28,530.34/42,801.98 = 15,382.42/x
3. Step 3: Cross multiply
   28,530.34x = 42,801.98 × 15,382.42
4. Step 4: Simplify right side
   28,530.34x = 658,398,033.19
5. Step 5: Solve for x
   x = 658,398,033.19/28,530.34
6. Step 6: Final answer
   x = 23,077.12