Finding the Fourth Proportional to 42,200.44, 58,176.50 and 28,754.44

Step by Step Solution

1. Step 1: Write the proportion equation
   42,200.44 : 58,176.50 = 28,754.44 : x
2. Step 2: Convert to fraction form
   42,200.44/58,176.50 = 28,754.44/x
3. Step 3: Cross multiply
   42,200.44x = 58,176.50 × 28,754.44
4. Step 4: Simplify right side
   42,200.44x = 1,672,832,389.45
5. Step 5: Solve for x
   x = 1,672,832,389.45/42,200.44
6. Step 6: Final answer
   x = 39,640.17