Finding the Fourth Proportional to 140,506.72, 193,896.56 and 76,844.32

Step by Step Solution

1. Step 1: Write the proportion equation
   140,506.72 : 193,896.56 = 76,844.32 : x
2. Step 2: Convert to fraction form
   140,506.72/193,896.56 = 76,844.32/x
3. Step 3: Cross multiply
   140,506.72x = 193,896.56 × 76,844.32
4. Step 4: Simplify right side
   140,506.72x = 14,899,849,303.54
5. Step 5: Solve for x
   x = 14,899,849,303.54/140,506.72
6. Step 6: Final answer
   x = 106,043.68