Finding the Fourth Proportional to 10,888.48, 16,335.89 and 3,492.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,888.48 : 16,335.89 = 3,492.78 : x
2. Step 2: Convert to fraction form
   10,888.48/16,335.89 = 3,492.78/x
3. Step 3: Cross multiply
   10,888.48x = 16,335.89 × 3,492.78
4. Step 4: Simplify right side
   10,888.48x = 57,057,669.87
5. Step 5: Solve for x
   x = 57,057,669.87/10,888.48
6. Step 6: Final answer
   x = 5,240.19