Finding the Fourth Proportional to 17,083.90, 25,618.15 and 7,218.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,083.90 : 25,618.15 = 7,218.10 : x
2. Step 2: Convert to fraction form
   17,083.90/25,618.15 = 7,218.10/x
3. Step 3: Cross multiply
   17,083.90x = 25,618.15 × 7,218.10
4. Step 4: Simplify right side
   17,083.90x = 184,914,368.52
5. Step 5: Solve for x
   x = 184,914,368.52/17,083.90
6. Step 6: Final answer
   x = 10,823.90