Finding the Fourth Proportional to 37,185.23, 55,730.46 and 17,420.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,185.23 : 55,730.46 = 17,420.21 : x
2. Step 2: Convert to fraction form
   37,185.23/55,730.46 = 17,420.21/x
3. Step 3: Cross multiply
   37,185.23x = 55,730.46 × 17,420.21
4. Step 4: Simplify right side
   37,185.23x = 970,836,478.76
5. Step 5: Solve for x
   x = 970,836,478.76/37,185.23
6. Step 6: Final answer
   x = 26,108.12