Finding the Fourth Proportional to 35,875.91, 53,815.89 and 10,916.78

Step by Step Solution

1. Step 1: Write the proportion equation
   35,875.91 : 53,815.89 = 10,916.78 : x
2. Step 2: Convert to fraction form
   35,875.91/53,815.89 = 10,916.78/x
3. Step 3: Cross multiply
   35,875.91x = 53,815.89 × 10,916.78
4. Step 4: Simplify right side
   35,875.91x = 587,496,003.49
5. Step 5: Solve for x
   x = 587,496,003.49/35,875.91
6. Step 6: Final answer
   x = 16,375.78