Finding the Fourth Proportional to 17,053.79, 23,535.81 and 9,980.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,053.79 : 23,535.81 = 9,980.21 : x
2. Step 2: Convert to fraction form
   17,053.79/23,535.81 = 9,980.21/x
3. Step 3: Cross multiply
   17,053.79x = 23,535.81 × 9,980.21
4. Step 4: Simplify right side
   17,053.79x = 234,892,208.64
5. Step 5: Solve for x
   x = 234,892,208.64/17,053.79
6. Step 6: Final answer
   x = 13,773.61