Finding the Fourth Proportional to 65,659.61, 90,606.55 and 38,804.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,659.61 : 90,606.55 = 38,804.62 : x
2. Step 2: Convert to fraction form
   65,659.61/90,606.55 = 38,804.62/x
3. Step 3: Cross multiply
   65,659.61x = 90,606.55 × 38,804.62
4. Step 4: Simplify right side
   65,659.61x = 3,515,952,661.38
5. Step 5: Solve for x
   x = 3,515,952,661.38/65,659.61
6. Step 6: Final answer
   x = 53,548.18