Finding the Fourth Proportional to 18,535.32, 27,805.69 and 5,385.98

Step by Step Solution

1. Step 1: Write the proportion equation
   18,535.32 : 27,805.69 = 5,385.98 : x
2. Step 2: Convert to fraction form
   18,535.32/27,805.69 = 5,385.98/x
3. Step 3: Cross multiply
   18,535.32x = 27,805.69 × 5,385.98
4. Step 4: Simplify right side
   18,535.32x = 149,760,966.47
5. Step 5: Solve for x
   x = 149,760,966.47/18,535.32
6. Step 6: Final answer
   x = 8,079.76