Finding the Fourth Proportional to 72,144.48, 108,124.32 and 30,534.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,144.48 : 108,124.32 = 30,534.24 : x
2. Step 2: Convert to fraction form
   72,144.48/108,124.32 = 30,534.24/x
3. Step 3: Cross multiply
   72,144.48x = 108,124.32 × 30,534.24
4. Step 4: Simplify right side
   72,144.48x = 3,301,493,936.72
5. Step 5: Solve for x
   x = 3,301,493,936.72/72,144.48
6. Step 6: Final answer
   x = 45,762.25