Finding the Fourth Proportional to 69,171.96, 103,591.61 and 39,499.86

Step by Step Solution

1. Step 1: Write the proportion equation
   69,171.96 : 103,591.61 = 39,499.86 : x
2. Step 2: Convert to fraction form
   69,171.96/103,591.61 = 39,499.86/x
3. Step 3: Cross multiply
   69,171.96x = 103,591.61 × 39,499.86
4. Step 4: Simplify right side
   69,171.96x = 4,091,853,894.68
5. Step 5: Solve for x
   x = 4,091,853,894.68/69,171.96
6. Step 6: Final answer
   x = 59,154.81