Finding the Fourth Proportional to 13,047.48, 18,004.41 and 7,381.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.48 : 18,004.41 = 7,381.98 : x
2. Step 2: Convert to fraction form
   13,047.48/18,004.41 = 7,381.98/x
3. Step 3: Cross multiply
   13,047.48x = 18,004.41 × 7,381.98
4. Step 4: Simplify right side
   13,047.48x = 132,908,194.53
5. Step 5: Solve for x
   x = 132,908,194.53/13,047.48
6. Step 6: Final answer
   x = 10,186.50