Finding the Fourth Proportional to 128,768.00, 193,112.46 and 89,042.22

Step by Step Solution

1. Step 1: Write the proportion equation
   128,768.00 : 193,112.46 = 89,042.22 : x
2. Step 2: Convert to fraction form
   128,768.00/193,112.46 = 89,042.22/x
3. Step 3: Cross multiply
   128,768.00x = 193,112.46 × 89,042.22
4. Step 4: Simplify right side
   128,768.00x = 17,195,162,148.06
5. Step 5: Solve for x
   x = 17,195,162,148.06/128,768.00
6. Step 6: Final answer
   x = 133,535.99