Finding the Fourth Proportional to 13,436.42, 18,540.16 and 7,468.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,436.42 : 18,540.16 = 7,468.07 : x
2. Step 2: Convert to fraction form
   13,436.42/18,540.16 = 7,468.07/x
3. Step 3: Cross multiply
   13,436.42x = 18,540.16 × 7,468.07
4. Step 4: Simplify right side
   13,436.42x = 138,459,101.32
5. Step 5: Solve for x
   x = 138,459,101.32/13,436.42
6. Step 6: Final answer
   x = 10,304.77