Finding the Fourth Proportional to 67,851.36, 101,815.92 and 37,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,851.36 : 101,815.92 = 37,890.72 : x
2. Step 2: Convert to fraction form
   67,851.36/101,815.92 = 37,890.72/x
3. Step 3: Cross multiply
   67,851.36x = 101,815.92 × 37,890.72
4. Step 4: Simplify right side
   67,851.36x = 3,857,878,516.26
5. Step 5: Solve for x
   x = 3,857,878,516.26/67,851.36
6. Step 6: Final answer
   x = 56,857.79