Finding the Fourth Proportional to 13,006.68, 17,947.89 and 7,340.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,006.68 : 17,947.89 = 7,340.91 : x
2. Step 2: Convert to fraction form
   13,006.68/17,947.89 = 7,340.91/x
3. Step 3: Cross multiply
   13,006.68x = 17,947.89 × 7,340.91
4. Step 4: Simplify right side
   13,006.68x = 131,753,845.18
5. Step 5: Solve for x
   x = 131,753,845.18/13,006.68
6. Step 6: Final answer
   x = 10,129.71