Finding the Fourth Proportional to 13,598.12, 18,766.18 and 7,630.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,598.12 : 18,766.18 = 7,630.31 : x
2. Step 2: Convert to fraction form
   13,598.12/18,766.18 = 7,630.31/x
3. Step 3: Cross multiply
   13,598.12x = 18,766.18 × 7,630.31
4. Step 4: Simplify right side
   13,598.12x = 143,191,827.37
5. Step 5: Solve for x
   x = 143,191,827.37/13,598.12
6. Step 6: Final answer
   x = 10,530.26