Finding the Fourth Proportional to 12,371.61, 17,070.96 and 7,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,371.61 : 17,070.96 = 7,065.30 : x
2. Step 2: Convert to fraction form
   12,371.61/17,070.96 = 7,065.30/x
3. Step 3: Cross multiply
   12,371.61x = 17,070.96 × 7,065.30
4. Step 4: Simplify right side
   12,371.61x = 120,611,453.69
5. Step 5: Solve for x
   x = 120,611,453.69/12,371.61
6. Step 6: Final answer
   x = 9,749.05