Finding the Fourth Proportional to 11,111.37, 16,655.44 and 5,261.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.37 : 16,655.44 = 5,261.01 : x
2. Step 2: Convert to fraction form
   11,111.37/16,655.44 = 5,261.01/x
3. Step 3: Cross multiply
   11,111.37x = 16,655.44 × 5,261.01
4. Step 4: Simplify right side
   11,111.37x = 87,624,436.39
5. Step 5: Solve for x
   x = 87,624,436.39/11,111.37
6. Step 6: Final answer
   x = 7,886.02