Finding the Fourth Proportional to 42,397.20, 58,474.74 and 37,557.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,397.20 : 58,474.74 = 37,557.09 : x
2. Step 2: Convert to fraction form
   42,397.20/58,474.74 = 37,557.09/x
3. Step 3: Cross multiply
   42,397.20x = 58,474.74 × 37,557.09
4. Step 4: Simplify right side
   42,397.20x = 2,196,141,072.91
5. Step 5: Solve for x
   x = 2,196,141,072.91/42,397.20
6. Step 6: Final answer
   x = 51,799.20