Finding the Fourth Proportional to 12,973.71, 17,896.91 and 8,191.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973.71 : 17,896.91 = 8,191.93 : x
2. Step 2: Convert to fraction form
   12,973.71/17,896.91 = 8,191.93/x
3. Step 3: Cross multiply
   12,973.71x = 17,896.91 × 8,191.93
4. Step 4: Simplify right side
   12,973.71x = 146,610,215.35
5. Step 5: Solve for x
   x = 146,610,215.35/12,973.71
6. Step 6: Final answer
   x = 11,300.56