Finding the Fourth Proportional to 11,139.11, 16,705.93 and 4,900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139.11 : 16,705.93 = 4,900.69 : x
2. Step 2: Convert to fraction form
   11,139.11/16,705.93 = 4,900.69/x
3. Step 3: Cross multiply
   11,139.11x = 16,705.93 × 4,900.69
4. Step 4: Simplify right side
   11,139.11x = 81,870,584.09
5. Step 5: Solve for x
   x = 81,870,584.09/11,139.11
6. Step 6: Final answer
   x = 7,349.83