Finding the Fourth Proportional to 30,838.68, 42,557.55 and 16,691.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,838.68 : 42,557.55 = 16,691.52 : x
2. Step 2: Convert to fraction form
   30,838.68/42,557.55 = 16,691.52/x
3. Step 3: Cross multiply
   30,838.68x = 42,557.55 × 16,691.52
4. Step 4: Simplify right side
   30,838.68x = 710,350,196.98
5. Step 5: Solve for x
   x = 710,350,196.98/30,838.68
6. Step 6: Final answer
   x = 23,034.39