Finding the Fourth Proportional to 29,300.72, 40,435.18 and 16,380

Step by Step Solution

1. Step 1: Write the proportion equation
   29,300.72 : 40,435.18 = 16,380 : x
2. Step 2: Convert to fraction form
   29,300.72/40,435.18 = 16,380/x
3. Step 3: Cross multiply
   29,300.72x = 40,435.18 × 16,380
4. Step 4: Simplify right side
   29,300.72x = 662,328,248.40
5. Step 5: Solve for x
   x = 662,328,248.40/29,300.72
6. Step 6: Final answer
   x = 22,604.50