Finding the Fourth Proportional to 63,667.41, 87,861.54 and 39,807.91

Step by Step Solution

1. Step 1: Write the proportion equation
   63,667.41 : 87,861.54 = 39,807.91 : x
2. Step 2: Convert to fraction form
   63,667.41/87,861.54 = 39,807.91/x
3. Step 3: Cross multiply
   63,667.41x = 87,861.54 × 39,807.91
4. Step 4: Simplify right side
   63,667.41x = 3,497,584,276.78
5. Step 5: Solve for x
   x = 3,497,584,276.78/63,667.41
6. Step 6: Final answer
   x = 54,935.24