Finding the Fourth Proportional to 11,659.86, 16,090.62 and 6,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,659.86 : 16,090.62 = 6,354.72 : x
2. Step 2: Convert to fraction form
   11,659.86/16,090.62 = 6,354.72/x
3. Step 3: Cross multiply
   11,659.86x = 16,090.62 × 6,354.72
4. Step 4: Simplify right side
   11,659.86x = 102,251,384.73
5. Step 5: Solve for x
   x = 102,251,384.73/11,659.86
6. Step 6: Final answer
   x = 8,769.52