Finding the Fourth Proportional to 17,070.06, 23,538.72 and 13,479.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,070.06 : 23,538.72 = 13,479.06 : x
2. Step 2: Convert to fraction form
   17,070.06/23,538.72 = 13,479.06/x
3. Step 3: Cross multiply
   17,070.06x = 23,538.72 × 13,479.06
4. Step 4: Simplify right side
   17,070.06x = 317,279,819.20
5. Step 5: Solve for x
   x = 317,279,819.20/17,070.06
6. Step 6: Final answer
   x = 18,586.92