Finding the Fourth Proportional to 328,527.96, 492,795.89 and 128,942.34

Step by Step Solution

1. Step 1: Write the proportion equation
   328,527.96 : 492,795.89 = 128,942.34 : x
2. Step 2: Convert to fraction form
   328,527.96/492,795.89 = 128,942.34/x
3. Step 3: Cross multiply
   328,527.96x = 492,795.89 × 128,942.34
4. Step 4: Simplify right side
   328,527.96x = 63,542,254,554.27
5. Step 5: Solve for x
   x = 63,542,254,554.27/328,527.96
6. Step 6: Final answer
   x = 193,415.06