Finding the Fourth Proportional to 13,084.71, 18,056.51 and 7,419.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,084.71 : 18,056.51 = 7,419.98 : x
2. Step 2: Convert to fraction form
   13,084.71/18,056.51 = 7,419.98/x
3. Step 3: Cross multiply
   13,084.71x = 18,056.51 × 7,419.98
4. Step 4: Simplify right side
   13,084.71x = 133,978,852.79
5. Step 5: Solve for x
   x = 133,978,852.79/13,084.71
6. Step 6: Final answer
   x = 10,239.34