Finding the Fourth Proportional to 42,105.45, 62,972.28 and 37,458.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,105.45 : 62,972.28 = 37,458.21 : x
2. Step 2: Convert to fraction form
   42,105.45/62,972.28 = 37,458.21/x
3. Step 3: Cross multiply
   42,105.45x = 62,972.28 × 37,458.21
4. Step 4: Simplify right side
   42,105.45x = 2,358,828,888.42
5. Step 5: Solve for x
   x = 2,358,828,888.42/42,105.45
6. Step 6: Final answer
   x = 56,021.94