Finding the Fourth Proportional to 69,721.71, 96,216.56 and 37,890.59

Step by Step Solution

1. Step 1: Write the proportion equation
   69,721.71 : 96,216.56 = 37,890.59 : x
2. Step 2: Convert to fraction form
   69,721.71/96,216.56 = 37,890.59/x
3. Step 3: Cross multiply
   69,721.71x = 96,216.56 × 37,890.59
4. Step 4: Simplify right side
   69,721.71x = 3,645,701,697.72
5. Step 5: Solve for x
   x = 3,645,701,697.72/69,721.71
6. Step 6: Final answer
   x = 52,289.33