Finding the Fourth Proportional to 72,096.70, 108,144.99 and 52,499.92

Step by Step Solution

1. Step 1: Write the proportion equation
   72,096.70 : 108,144.99 = 52,499.92 : x
2. Step 2: Convert to fraction form
   72,096.70/108,144.99 = 52,499.92/x
3. Step 3: Cross multiply
   72,096.70x = 108,144.99 × 52,499.92
4. Step 4: Simplify right side
   72,096.70x = 5,677,603,323.40
5. Step 5: Solve for x
   x = 5,677,603,323.40/72,096.70
6. Step 6: Final answer
   x = 78,749.84