Finding the Fourth Proportional to 37,215.77, 55,825.49 and 10,918.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,215.77 : 55,825.49 = 10,918.31 : x
2. Step 2: Convert to fraction form
   37,215.77/55,825.49 = 10,918.31/x
3. Step 3: Cross multiply
   37,215.77x = 55,825.49 × 10,918.31
4. Step 4: Simplify right side
   37,215.77x = 609,520,005.72
5. Step 5: Solve for x
   x = 609,520,005.72/37,215.77
6. Step 6: Final answer
   x = 16,378.00