Finding the Fourth Proportional to 72,131.93, 99,477.34 and 60,072.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,131.93 : 99,477.34 = 60,072.24 : x
2. Step 2: Convert to fraction form
   72,131.93/99,477.34 = 60,072.24/x
3. Step 3: Cross multiply
   72,131.93x = 99,477.34 × 60,072.24
4. Step 4: Simplify right side
   72,131.93x = 5,975,826,492.86
5. Step 5: Solve for x
   x = 5,975,826,492.86/72,131.93
6. Step 6: Final answer
   x = 82,845.79