Finding the Fourth Proportional to 213,128.86, 294,113.34 and 116,329.52

Step by Step Solution

1. Step 1: Write the proportion equation
   213,128.86 : 294,113.34 = 116,329.52 : x
2. Step 2: Convert to fraction form
   213,128.86/294,113.34 = 116,329.52/x
3. Step 3: Cross multiply
   213,128.86x = 294,113.34 × 116,329.52
4. Step 4: Simplify right side
   213,128.86x = 34,214,063,667.80
5. Step 5: Solve for x
   x = 34,214,063,667.80/213,128.86
6. Step 6: Final answer
   x = 160,532.29