Finding the Fourth Proportional to 69,588.72, 104,297.63 and 39,861.86

Step by Step Solution

1. Step 1: Write the proportion equation
   69,588.72 : 104,297.63 = 39,861.86 : x
2. Step 2: Convert to fraction form
   69,588.72/104,297.63 = 39,861.86/x
3. Step 3: Cross multiply
   69,588.72x = 104,297.63 × 39,861.86
4. Step 4: Simplify right side
   69,588.72x = 4,157,496,804.59
5. Step 5: Solve for x
   x = 4,157,496,804.59/69,588.72
6. Step 6: Final answer
   x = 59,743.83