Finding the Fourth Proportional to 40,390.46, 55,731.90 and 37,124.18

Step by Step Solution

1. Step 1: Write the proportion equation
   40,390.46 : 55,731.90 = 37,124.18 : x
2. Step 2: Convert to fraction form
   40,390.46/55,731.90 = 37,124.18/x
3. Step 3: Cross multiply
   40,390.46x = 55,731.90 × 37,124.18
4. Step 4: Simplify right side
   40,390.46x = 2,069,001,087.34
5. Step 5: Solve for x
   x = 2,069,001,087.34/40,390.46
6. Step 6: Final answer
   x = 51,224.99