Finding the Fourth Proportional to 13,064.85, 18,030.96 and 7,399.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.85 : 18,030.96 = 7,399.98 : x
2. Step 2: Convert to fraction form
   13,064.85/18,030.96 = 7,399.98/x
3. Step 3: Cross multiply
   13,064.85x = 18,030.96 × 7,399.98
4. Step 4: Simplify right side
   13,064.85x = 133,428,743.38
5. Step 5: Solve for x
   x = 133,428,743.38/13,064.85
6. Step 6: Final answer
   x = 10,212.80