Finding the Fourth Proportional to 71,999.46, 99,396.61 and 52,596.59

Step by Step Solution

1. Step 1: Write the proportion equation
   71,999.46 : 99,396.61 = 52,596.59 : x
2. Step 2: Convert to fraction form
   71,999.46/99,396.61 = 52,596.59/x
3. Step 3: Cross multiply
   71,999.46x = 99,396.61 × 52,596.59
4. Step 4: Simplify right side
   71,999.46x = 5,227,922,626.56
5. Step 5: Solve for x
   x = 5,227,922,626.56/71,999.46
6. Step 6: Final answer
   x = 72,610.58