Finding the Fourth Proportional to 72,173.08, 99,598.56 and 40,341.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,173.08 : 99,598.56 = 40,341.96 : x
2. Step 2: Convert to fraction form
   72,173.08/99,598.56 = 40,341.96/x
3. Step 3: Cross multiply
   72,173.08x = 99,598.56 × 40,341.96
4. Step 4: Simplify right side
   72,173.08x = 4,018,001,123.58
5. Step 5: Solve for x
   x = 4,018,001,123.58/72,173.08
6. Step 6: Final answer
   x = 55,671.74