Finding the Fourth Proportional to 126,026.86, 173,915.71 and 72,320.34

Step by Step Solution

1. Step 1: Write the proportion equation
   126,026.86 : 173,915.71 = 72,320.34 : x
2. Step 2: Convert to fraction form
   126,026.86/173,915.71 = 72,320.34/x
3. Step 3: Cross multiply
   126,026.86x = 173,915.71 × 72,320.34
4. Step 4: Simplify right side
   126,026.86x = 12,577,643,278.54
5. Step 5: Solve for x
   x = 12,577,643,278.54/126,026.86
6. Step 6: Final answer
   x = 99,801.29