Finding the Fourth Proportional to 37,884.91, 56,815.05 and 17,891.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,884.91 : 56,815.05 = 17,891.31 : x
2. Step 2: Convert to fraction form
   37,884.91/56,815.05 = 17,891.31/x
3. Step 3: Cross multiply
   37,884.91x = 56,815.05 × 17,891.31
4. Step 4: Simplify right side
   37,884.91x = 1,016,495,672.22
5. Step 5: Solve for x
   x = 1,016,495,672.22/37,884.91
6. Step 6: Final answer
   x = 26,831.15