Finding the Fourth Proportional to 11,300.86, 16,948.05 and 3,903.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.86 : 16,948.05 = 3,903.40 : x
2. Step 2: Convert to fraction form
   11,300.86/16,948.05 = 3,903.40/x
3. Step 3: Cross multiply
   11,300.86x = 16,948.05 × 3,903.40
4. Step 4: Simplify right side
   11,300.86x = 66,155,018.37
5. Step 5: Solve for x
   x = 66,155,018.37/11,300.86
6. Step 6: Final answer
   x = 5,853.98