Finding the Fourth Proportional to 17,085.40, 23,542.86 and 12,602.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,085.40 : 23,542.86 = 12,602.05 : x
2. Step 2: Convert to fraction form
   17,085.40/23,542.86 = 12,602.05/x
3. Step 3: Cross multiply
   17,085.40x = 23,542.86 × 12,602.05
4. Step 4: Simplify right side
   17,085.40x = 296,688,298.86
5. Step 5: Solve for x
   x = 296,688,298.86/17,085.40
6. Step 6: Final answer
   x = 17,365.02