Finding the Fourth Proportional to 28,467.47, 42,707.23 and 10,698.29

Step by Step Solution

1. Step 1: Write the proportion equation
   28,467.47 : 42,707.23 = 10,698.29 : x
2. Step 2: Convert to fraction form
   28,467.47/42,707.23 = 10,698.29/x
3. Step 3: Cross multiply
   28,467.47x = 42,707.23 × 10,698.29
4. Step 4: Simplify right side
   28,467.47x = 456,894,064.61
5. Step 5: Solve for x
   x = 456,894,064.61/28,467.47
6. Step 6: Final answer
   x = 16,049.69