Finding the Fourth Proportional to 13,100.30, 18,075.61 and 7,794.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.30 : 18,075.61 = 7,794.08 : x
2. Step 2: Convert to fraction form
   13,100.30/18,075.61 = 7,794.08/x
3. Step 3: Cross multiply
   13,100.30x = 18,075.61 × 7,794.08
4. Step 4: Simplify right side
   13,100.30x = 140,882,685.71
5. Step 5: Solve for x
   x = 140,882,685.71/13,100.30
6. Step 6: Final answer
   x = 10,754.16