Finding the Fourth Proportional to 10,638.92, 14,666.46 and 7,485.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638.92 : 14,666.46 = 7,485.32 : x
2. Step 2: Convert to fraction form
   10,638.92/14,666.46 = 7,485.32/x
3. Step 3: Cross multiply
   10,638.92x = 14,666.46 × 7,485.32
4. Step 4: Simplify right side
   10,638.92x = 109,783,146.37
5. Step 5: Solve for x
   x = 109,783,146.37/10,638.92
6. Step 6: Final answer
   x = 10,319.01