Finding the Fourth Proportional to 126,139.59, 174,074.00 and 68,778.45

Step by Step Solution

1. Step 1: Write the proportion equation
   126,139.59 : 174,074.00 = 68,778.45 : x
2. Step 2: Convert to fraction form
   126,139.59/174,074.00 = 68,778.45/x
3. Step 3: Cross multiply
   126,139.59x = 174,074.00 × 68,778.45
4. Step 4: Simplify right side
   126,139.59x = 11,972,538,691.04
5. Step 5: Solve for x
   x = 11,972,538,691.04/126,139.59
6. Step 6: Final answer
   x = 94,915.00