Finding the Fourth Proportional to 128,429.29, 177,245.76 and 73,983.34

Step by Step Solution

1. Step 1: Write the proportion equation
   128,429.29 : 177,245.76 = 73,983.34 : x
2. Step 2: Convert to fraction form
   128,429.29/177,245.76 = 73,983.34/x
3. Step 3: Cross multiply
   128,429.29x = 177,245.76 × 73,983.34
4. Step 4: Simplify right side
   128,429.29x = 13,113,233,325.64
5. Step 5: Solve for x
   x = 13,113,233,325.64/128,429.29
6. Step 6: Final answer
   x = 102,104.69