Finding the Fourth Proportional to 47,546.32, 71,322.72 and 12,485.92

Step by Step Solution

1. Step 1: Write the proportion equation
   47,546.32 : 71,322.72 = 12,485.92 : x
2. Step 2: Convert to fraction form
   47,546.32/71,322.72 = 12,485.92/x
3. Step 3: Cross multiply
   47,546.32x = 71,322.72 × 12,485.92
4. Step 4: Simplify right side
   47,546.32x = 890,529,776.10
5. Step 5: Solve for x
   x = 890,529,776.10/47,546.32
6. Step 6: Final answer
   x = 18,729.73