Finding the Fourth Proportional to 12,700.96, 17,527.30 and 7,111.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.96 : 17,527.30 = 7,111.96 : x
2. Step 2: Convert to fraction form
   12,700.96/17,527.30 = 7,111.96/x
3. Step 3: Cross multiply
   12,700.96x = 17,527.30 × 7,111.96
4. Step 4: Simplify right side
   12,700.96x = 124,653,456.51
5. Step 5: Solve for x
   x = 124,653,456.51/12,700.96
6. Step 6: Final answer
   x = 9,814.49