Finding the Fourth Proportional to 72,088.48, 99,483.59 and 40,257.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,088.48 : 99,483.59 = 40,257.41 : x
2. Step 2: Convert to fraction form
   72,088.48/99,483.59 = 40,257.41/x
3. Step 3: Cross multiply
   72,088.48x = 99,483.59 × 40,257.41
4. Step 4: Simplify right side
   72,088.48x = 4,004,951,274.13
5. Step 5: Solve for x
   x = 4,004,951,274.13/72,088.48
6. Step 6: Final answer
   x = 55,556.05