Finding the Fourth Proportional to 16,066.51, 22,160.34 and 9,779.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,066.51 : 22,160.34 = 9,779.29 : x
2. Step 2: Convert to fraction form
   16,066.51/22,160.34 = 9,779.29/x
3. Step 3: Cross multiply
   16,066.51x = 22,160.34 × 9,779.29
4. Step 4: Simplify right side
   16,066.51x = 216,712,391.36
5. Step 5: Solve for x
   x = 216,712,391.36/16,066.51
6. Step 6: Final answer
   x = 13,488.45