Finding the Fourth Proportional to 13,379.51, 18,463.72 and 7,411.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,379.51 : 18,463.72 = 7,411.56 : x
2. Step 2: Convert to fraction form
   13,379.51/18,463.72 = 7,411.56/x
3. Step 3: Cross multiply
   13,379.51x = 18,463.72 × 7,411.56
4. Step 4: Simplify right side
   13,379.51x = 136,845,047.11
5. Step 5: Solve for x
   x = 136,845,047.11/13,379.51
6. Step 6: Final answer
   x = 10,227.96