Finding the Fourth Proportional to 10,705.47, 16,017.89 and 7,424.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.47 : 16,017.89 = 7,424.91 : x
2. Step 2: Convert to fraction form
   10,705.47/16,017.89 = 7,424.91/x
3. Step 3: Cross multiply
   10,705.47x = 16,017.89 × 7,424.91
4. Step 4: Simplify right side
   10,705.47x = 118,931,354.52
5. Step 5: Solve for x
   x = 118,931,354.52/10,705.47
6. Step 6: Final answer
   x = 11,109.40