Finding the Fourth Proportional to 87,574.89, 131,380.83 and 28,405.98

Step by Step Solution

1. Step 1: Write the proportion equation
   87,574.89 : 131,380.83 = 28,405.98 : x
2. Step 2: Convert to fraction form
   87,574.89/131,380.83 = 28,405.98/x
3. Step 3: Cross multiply
   87,574.89x = 131,380.83 × 28,405.98
4. Step 4: Simplify right side
   87,574.89x = 3,732,001,229.36
5. Step 5: Solve for x
   x = 3,732,001,229.36/87,574.89
6. Step 6: Final answer
   x = 42,614.97