Finding the Fourth Proportional to 12,832.60, 17,707.98 and 7,166.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,832.60 : 17,707.98 = 7,166.91 : x
2. Step 2: Convert to fraction form
   12,832.60/17,707.98 = 7,166.91/x
3. Step 3: Cross multiply
   12,832.60x = 17,707.98 × 7,166.91
4. Step 4: Simplify right side
   12,832.60x = 126,911,412.58
5. Step 5: Solve for x
   x = 126,911,412.58/12,832.60
6. Step 6: Final answer
   x = 9,889.76