Finding the Fourth Proportional to 37,400.72, 56,071.89 and 18,671.36

Step by Step Solution

1. Step 1: Write the proportion equation
   37,400.72 : 56,071.89 = 18,671.36 : x
2. Step 2: Convert to fraction form
   37,400.72/56,071.89 = 18,671.36/x
3. Step 3: Cross multiply
   37,400.72x = 56,071.89 × 18,671.36
4. Step 4: Simplify right side
   37,400.72x = 1,046,938,444.07
5. Step 5: Solve for x
   x = 1,046,938,444.07/37,400.72
6. Step 6: Final answer
   x = 27,992.47