Finding the Fourth Proportional to 72,562.10, 108,801.25 and 28,136.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,562.10 : 108,801.25 = 28,136.96 : x
2. Step 2: Convert to fraction form
   72,562.10/108,801.25 = 28,136.96/x
3. Step 3: Cross multiply
   72,562.10x = 108,801.25 × 28,136.96
4. Step 4: Simplify right side
   72,562.10x = 3,061,335,734.51
5. Step 5: Solve for x
   x = 3,061,335,734.51/72,562.10
6. Step 6: Final answer
   x = 42,189.18