Finding the Fourth Proportional to 42,221.10, 58,376.43 and 36,972.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,221.10 : 58,376.43 = 36,972.30 : x
2. Step 2: Convert to fraction form
   42,221.10/58,376.43 = 36,972.30/x
3. Step 3: Cross multiply
   42,221.10x = 58,376.43 × 36,972.30
4. Step 4: Simplify right side
   42,221.10x = 2,158,310,882.89
5. Step 5: Solve for x
   x = 2,158,310,882.89/42,221.10
6. Step 6: Final answer
   x = 51,119.25