Finding the Fourth Proportional to 11,111.60, 16,650.96 and 4,865.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.60 : 16,650.96 = 4,865.84 : x
2. Step 2: Convert to fraction form
   11,111.60/16,650.96 = 4,865.84/x
3. Step 3: Cross multiply
   11,111.60x = 16,650.96 × 4,865.84
4. Step 4: Simplify right side
   11,111.60x = 81,020,907.21
5. Step 5: Solve for x
   x = 81,020,907.21/11,111.60
6. Step 6: Final answer
   x = 7,291.56