Finding the Fourth Proportional to 13,084.49, 18,056.52 and 7,420.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,084.49 : 18,056.52 = 7,420.32 : x
2. Step 2: Convert to fraction form
   13,084.49/18,056.52 = 7,420.32/x
3. Step 3: Cross multiply
   13,084.49x = 18,056.52 × 7,420.32
4. Step 4: Simplify right side
   13,084.49x = 133,985,156.49
5. Step 5: Solve for x
   x = 133,985,156.49/13,084.49
6. Step 6: Final answer
   x = 10,240.00