Finding the Fourth Proportional to 13,298.58, 18,352.98 and 7,634.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298.58 : 18,352.98 = 7,634.25 : x
2. Step 2: Convert to fraction form
   13,298.58/18,352.98 = 7,634.25/x
3. Step 3: Cross multiply
   13,298.58x = 18,352.98 × 7,634.25
4. Step 4: Simplify right side
   13,298.58x = 140,111,237.57
5. Step 5: Solve for x
   x = 140,111,237.57/13,298.58
6. Step 6: Final answer
   x = 10,535.80