Finding the Fourth Proportional to 72,444.02, 108,656.78 and 28,040.39

Step by Step Solution

1. Step 1: Write the proportion equation
   72,444.02 : 108,656.78 = 28,040.39 : x
2. Step 2: Convert to fraction form
   72,444.02/108,656.78 = 28,040.39/x
3. Step 3: Cross multiply
   72,444.02x = 108,656.78 × 28,040.39
4. Step 4: Simplify right side
   72,444.02x = 3,046,778,014.16
5. Step 5: Solve for x
   x = 3,046,778,014.16/72,444.02
6. Step 6: Final answer
   x = 42,057.00