Finding the Fourth Proportional to 128,342.48, 192,353.33 and 88,582.82

Step by Step Solution

1. Step 1: Write the proportion equation
   128,342.48 : 192,353.33 = 88,582.82 : x
2. Step 2: Convert to fraction form
   128,342.48/192,353.33 = 88,582.82/x
3. Step 3: Cross multiply
   128,342.48x = 192,353.33 × 88,582.82
4. Step 4: Simplify right side
   128,342.48x = 17,039,199,667.48
5. Step 5: Solve for x
   x = 17,039,199,667.48/128,342.48
6. Step 6: Final answer
   x = 132,763.53