Finding the Fourth Proportional to 140,152.28, 193,620.96 and 91,868.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,152.28 : 193,620.96 = 91,868.88 : x
2. Step 2: Convert to fraction form
   140,152.28/193,620.96 = 91,868.88/x
3. Step 3: Cross multiply
   140,152.28x = 193,620.96 × 91,868.88
4. Step 4: Simplify right side
   140,152.28x = 17,787,740,739.72
5. Step 5: Solve for x
   x = 17,787,740,739.72/140,152.28
6. Step 6: Final answer
   x = 126,917.24