Finding the Fourth Proportional to 12,535.73, 17,298.56 and 7,158.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,535.73 : 17,298.56 = 7,158.80 : x
2. Step 2: Convert to fraction form
   12,535.73/17,298.56 = 7,158.80/x
3. Step 3: Cross multiply
   12,535.73x = 17,298.56 × 7,158.80
4. Step 4: Simplify right side
   12,535.73x = 123,836,809.04
5. Step 5: Solve for x
   x = 123,836,809.04/12,535.73
6. Step 6: Final answer
   x = 9,878.71