Finding the Fourth Proportional to 8,429.72, 11,637.06 and 4,892.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.72 : 11,637.06 = 4,892.36 : x
2. Step 2: Convert to fraction form
   8,429.72/11,637.06 = 4,892.36/x
3. Step 3: Cross multiply
   8,429.72x = 11,637.06 × 4,892.36
4. Step 4: Simplify right side
   8,429.72x = 56,932,686.86
5. Step 5: Solve for x
   x = 56,932,686.86/8,429.72
6. Step 6: Final answer
   x = 6,753.81