Finding the Fourth Proportional to 16,494.47, 22,762.62 and 9,420.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,494.47 : 22,762.62 = 9,420.91 : x
2. Step 2: Convert to fraction form
   16,494.47/22,762.62 = 9,420.91/x
3. Step 3: Cross multiply
   16,494.47x = 22,762.62 × 9,420.91
4. Step 4: Simplify right side
   16,494.47x = 214,444,480.57
5. Step 5: Solve for x
   x = 214,444,480.57/16,494.47
6. Step 6: Final answer
   x = 13,000.99