Finding the Fourth Proportional to 126,025.86, 173,914.34 and 72,319.34

Step by Step Solution

1. Step 1: Write the proportion equation
   126,025.86 : 173,914.34 = 72,319.34 : x
2. Step 2: Convert to fraction form
   126,025.86/173,914.34 = 72,319.34/x
3. Step 3: Cross multiply
   126,025.86x = 173,914.34 × 72,319.34
4. Step 4: Simplify right side
   126,025.86x = 12,577,369,054.17
5. Step 5: Solve for x
   x = 12,577,369,054.17/126,025.86
6. Step 6: Final answer
   x = 99,799.91