Finding the Fourth Proportional to 13,354.50, 18,428.49 and 7,385.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,354.50 : 18,428.49 = 7,385.82 : x
2. Step 2: Convert to fraction form
   13,354.50/18,428.49 = 7,385.82/x
3. Step 3: Cross multiply
   13,354.50x = 18,428.49 × 7,385.82
4. Step 4: Simplify right side
   13,354.50x = 136,109,510.01
5. Step 5: Solve for x
   x = 136,109,510.01/13,354.50
6. Step 6: Final answer
   x = 10,192.03