Finding the Fourth Proportional to 42,735.04, 58,997.28 and 28,612

Step by Step Solution

1. Step 1: Write the proportion equation
   42,735.04 : 58,997.28 = 28,612 : x
2. Step 2: Convert to fraction form
   42,735.04/58,997.28 = 28,612/x
3. Step 3: Cross multiply
   42,735.04x = 58,997.28 × 28,612
4. Step 4: Simplify right side
   42,735.04x = 1,688,030,175.36
5. Step 5: Solve for x
   x = 1,688,030,175.36/42,735.04
6. Step 6: Final answer
   x = 39,499.91