Finding the Fourth Proportional to 126,016.93, 173,901.53 and 72,300.77

Step by Step Solution

1. Step 1: Write the proportion equation
   126,016.93 : 173,901.53 = 72,300.77 : x
2. Step 2: Convert to fraction form
   126,016.93/173,901.53 = 72,300.77/x
3. Step 3: Cross multiply
   126,016.93x = 173,901.53 × 72,300.77
4. Step 4: Simplify right side
   126,016.93x = 12,573,214,523.18
5. Step 5: Solve for x
   x = 12,573,214,523.18/126,016.93
6. Step 6: Final answer
   x = 99,774.01