Finding the Fourth Proportional to 11,901.86, 16,403.59 and 10,527.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,901.86 : 16,403.59 = 10,527.09 : x
2. Step 2: Convert to fraction form
   11,901.86/16,403.59 = 10,527.09/x
3. Step 3: Cross multiply
   11,901.86x = 16,403.59 × 10,527.09
4. Step 4: Simplify right side
   11,901.86x = 172,682,068.25
5. Step 5: Solve for x
   x = 172,682,068.25/11,901.86
6. Step 6: Final answer
   x = 14,508.83