Finding the Fourth Proportional to 11,002.95, 16,506.86 and 5,459.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.95 : 16,506.86 = 5,459.31 : x
2. Step 2: Convert to fraction form
   11,002.95/16,506.86 = 5,459.31/x
3. Step 3: Cross multiply
   11,002.95x = 16,506.86 × 5,459.31
4. Step 4: Simplify right side
   11,002.95x = 90,116,065.87
5. Step 5: Solve for x
   x = 90,116,065.87/11,002.95
6. Step 6: Final answer
   x = 8,190.17