Finding the Fourth Proportional to 140,826.81, 194,345.56 and 77,168.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,826.81 : 194,345.56 = 77,168.71 : x
2. Step 2: Convert to fraction form
   140,826.81/194,345.56 = 77,168.71/x
3. Step 3: Cross multiply
   140,826.81x = 194,345.56 × 77,168.71
4. Step 4: Simplify right side
   140,826.81x = 14,997,396,159.43
5. Step 5: Solve for x
   x = 14,997,396,159.43/140,826.81
6. Step 6: Final answer
   x = 106,495.32