Finding the Fourth Proportional to 6,916.31, 10,374.42 and 3,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,916.31 : 10,374.42 = 3,216.50 : x
2. Step 2: Convert to fraction form
   6,916.31/10,374.42 = 3,216.50/x
3. Step 3: Cross multiply
   6,916.31x = 10,374.42 × 3,216.50
4. Step 4: Simplify right side
   6,916.31x = 33,369,321.93
5. Step 5: Solve for x
   x = 33,369,321.93/6,916.31
6. Step 6: Final answer
   x = 4,824.73