Finding the Fourth Proportional to 126,503.18, 174,611.10 and 72,826.10

Step by Step Solution

1. Step 1: Write the proportion equation
   126,503.18 : 174,611.10 = 72,826.10 : x
2. Step 2: Convert to fraction form
   126,503.18/174,611.10 = 72,826.10/x
3. Step 3: Cross multiply
   126,503.18x = 174,611.10 × 72,826.10
4. Step 4: Simplify right side
   126,503.18x = 12,716,245,429.71
5. Step 5: Solve for x
   x = 12,716,245,429.71/126,503.18
6. Step 6: Final answer
   x = 100,521.15