Finding the Fourth Proportional to 12,796.59, 19,215.72 and 7,897.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.59 : 19,215.72 = 7,897.37 : x
2. Step 2: Convert to fraction form
   12,796.59/19,215.72 = 7,897.37/x
3. Step 3: Cross multiply
   12,796.59x = 19,215.72 × 7,897.37
4. Step 4: Simplify right side
   12,796.59x = 151,753,698.70
5. Step 5: Solve for x
   x = 151,753,698.70/12,796.59
6. Step 6: Final answer
   x = 11,858.92