Finding the Fourth Proportional to 69,196.36, 95,490.52 and 38,991.40

Step by Step Solution

1. Step 1: Write the proportion equation
   69,196.36 : 95,490.52 = 38,991.40 : x
2. Step 2: Convert to fraction form
   69,196.36/95,490.52 = 38,991.40/x
3. Step 3: Cross multiply
   69,196.36x = 95,490.52 × 38,991.40
4. Step 4: Simplify right side
   69,196.36x = 3,723,309,061.53
5. Step 5: Solve for x
   x = 3,723,309,061.53/69,196.36
6. Step 6: Final answer
   x = 53,807.87