Finding the Fourth Proportional to 11,686.32, 16,137.90 and 7,501.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,686.32 : 16,137.90 = 7,501.86 : x
2. Step 2: Convert to fraction form
   11,686.32/16,137.90 = 7,501.86/x
3. Step 3: Cross multiply
   11,686.32x = 16,137.90 × 7,501.86
4. Step 4: Simplify right side
   11,686.32x = 121,064,266.49
5. Step 5: Solve for x
   x = 121,064,266.49/11,686.32
6. Step 6: Final answer
   x = 10,359.49