Finding the Fourth Proportional to 80,546.32, 111,145.80 and 47,031.76

Step by Step Solution

1. Step 1: Write the proportion equation
   80,546.32 : 111,145.80 = 47,031.76 : x
2. Step 2: Convert to fraction form
   80,546.32/111,145.80 = 47,031.76/x
3. Step 3: Cross multiply
   80,546.32x = 111,145.80 × 47,031.76
4. Step 4: Simplify right side
   80,546.32x = 5,227,382,590.61
5. Step 5: Solve for x
   x = 5,227,382,590.61/80,546.32
6. Step 6: Final answer
   x = 64,899.09