Finding the Fourth Proportional to 51,404.76, 70,932.32 and 28,431.48

Step by Step Solution

1. Step 1: Write the proportion equation
   51,404.76 : 70,932.32 = 28,431.48 : x
2. Step 2: Convert to fraction form
   51,404.76/70,932.32 = 28,431.48/x
3. Step 3: Cross multiply
   51,404.76x = 70,932.32 × 28,431.48
4. Step 4: Simplify right side
   51,404.76x = 2,016,710,837.43
5. Step 5: Solve for x
   x = 2,016,710,837.43/51,404.76
6. Step 6: Final answer
   x = 39,231.99