Finding the Fourth Proportional to 10,406.32, 15,607.98 and 3,386.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,406.32 : 15,607.98 = 3,386.98 : x
2. Step 2: Convert to fraction form
   10,406.32/15,607.98 = 3,386.98/x
3. Step 3: Cross multiply
   10,406.32x = 15,607.98 × 3,386.98
4. Step 4: Simplify right side
   10,406.32x = 52,863,916.10
5. Step 5: Solve for x
   x = 52,863,916.10/10,406.32
6. Step 6: Final answer
   x = 5,079.98