Finding the Fourth Proportional to 134,061.34, 185,091.33 and 83,128.18

Step by Step Solution

1. Step 1: Write the proportion equation
   134,061.34 : 185,091.33 = 83,128.18 : x
2. Step 2: Convert to fraction form
   134,061.34/185,091.33 = 83,128.18/x
3. Step 3: Cross multiply
   134,061.34x = 185,091.33 × 83,128.18
4. Step 4: Simplify right side
   134,061.34x = 15,386,305,396.68
5. Step 5: Solve for x
   x = 15,386,305,396.68/134,061.34
6. Step 6: Final answer
   x = 114,770.64