Finding the Fourth Proportional to 10,832.32, 16,238.72 and 4,985.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,832.32 : 16,238.72 = 4,985.92 : x
2. Step 2: Convert to fraction form
   10,832.32/16,238.72 = 4,985.92/x
3. Step 3: Cross multiply
   10,832.32x = 16,238.72 × 4,985.92
4. Step 4: Simplify right side
   10,832.32x = 80,964,958.82
5. Step 5: Solve for x
   x = 80,964,958.82/10,832.32
6. Step 6: Final answer
   x = 7,474.39