Finding the Fourth Proportional to 30,849.78, 42,572.70 and 16,702.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,849.78 : 42,572.70 = 16,702.62 : x
2. Step 2: Convert to fraction form
   30,849.78/42,572.70 = 16,702.62/x
3. Step 3: Cross multiply
   30,849.78x = 42,572.70 × 16,702.62
4. Step 4: Simplify right side
   30,849.78x = 711,075,630.47
5. Step 5: Solve for x
   x = 711,075,630.47/30,849.78
6. Step 6: Final answer
   x = 23,049.62