Finding the Fourth Proportional to 12,847.32, 17,723.34 and 9,070.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.32 : 17,723.34 = 9,070.56 : x
2. Step 2: Convert to fraction form
   12,847.32/17,723.34 = 9,070.56/x
3. Step 3: Cross multiply
   12,847.32x = 17,723.34 × 9,070.56
4. Step 4: Simplify right side
   12,847.32x = 160,760,618.87
5. Step 5: Solve for x
   x = 160,760,618.87/12,847.32
6. Step 6: Final answer
   x = 12,513.16