Finding the Fourth Proportional to 134,112.84, 185,086.80 and 86,465.40

Step by Step Solution

1. Step 1: Write the proportion equation
   134,112.84 : 185,086.80 = 86,465.40 : x
2. Step 2: Convert to fraction form
   134,112.84/185,086.80 = 86,465.40/x
3. Step 3: Cross multiply
   134,112.84x = 185,086.80 × 86,465.40
4. Step 4: Simplify right side
   134,112.84x = 16,003,604,196.72
5. Step 5: Solve for x
   x = 16,003,604,196.72/134,112.84
6. Step 6: Final answer
   x = 119,329.40