Finding the Fourth Proportional to 39,382.99, 59,061.72 and 13,080.67

Step by Step Solution

1. Step 1: Write the proportion equation
   39,382.99 : 59,061.72 = 13,080.67 : x
2. Step 2: Convert to fraction form
   39,382.99/59,061.72 = 13,080.67/x
3. Step 3: Cross multiply
   39,382.99x = 59,061.72 × 13,080.67
4. Step 4: Simplify right side
   39,382.99x = 772,566,868.95
5. Step 5: Solve for x
   x = 772,566,868.95/39,382.99
6. Step 6: Final answer
   x = 19,616.77