Finding the Fourth Proportional to 126,146.57, 174,087.83 and 72,433.85

Step by Step Solution

1. Step 1: Write the proportion equation
   126,146.57 : 174,087.83 = 72,433.85 : x
2. Step 2: Convert to fraction form
   126,146.57/174,087.83 = 72,433.85/x
3. Step 3: Cross multiply
   126,146.57x = 174,087.83 × 72,433.85
4. Step 4: Simplify right side
   126,146.57x = 12,609,851,075.69
5. Step 5: Solve for x
   x = 12,609,851,075.69/126,146.57
6. Step 6: Final answer
   x = 99,961.91