Finding the Fourth Proportional to 12,835.06, 17,711.55 and 7,457.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,835.06 : 17,711.55 = 7,457.02 : x
2. Step 2: Convert to fraction form
   12,835.06/17,711.55 = 7,457.02/x
3. Step 3: Cross multiply
   12,835.06x = 17,711.55 × 7,457.02
4. Step 4: Simplify right side
   12,835.06x = 132,075,382.58
5. Step 5: Solve for x
   x = 132,075,382.58/12,835.06
6. Step 6: Final answer
   x = 10,290.20