Finding the Fourth Proportional to 12,635.10, 17,435.80 and 7,045.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.10 : 17,435.80 = 7,045.02 : x
2. Step 2: Convert to fraction form
   12,635.10/17,435.80 = 7,045.02/x
3. Step 3: Cross multiply
   12,635.10x = 17,435.80 × 7,045.02
4. Step 4: Simplify right side
   12,635.10x = 122,835,559.72
5. Step 5: Solve for x
   x = 122,835,559.72/12,635.10
6. Step 6: Final answer
   x = 9,721.77