Finding the Fourth Proportional to 87,667.74, 131,418.36 and 28,461.96

Step by Step Solution

1. Step 1: Write the proportion equation
   87,667.74 : 131,418.36 = 28,461.96 : x
2. Step 2: Convert to fraction form
   87,667.74/131,418.36 = 28,461.96/x
3. Step 3: Cross multiply
   87,667.74x = 131,418.36 × 28,461.96
4. Step 4: Simplify right side
   87,667.74x = 3,740,424,105.59
5. Step 5: Solve for x
   x = 3,740,424,105.59/87,667.74
6. Step 6: Final answer
   x = 42,665.91