Finding the Fourth Proportional to 134,329.59, 185,499.32 and 86,664.87

Step by Step Solution

1. Step 1: Write the proportion equation
   134,329.59 : 185,499.32 = 86,664.87 : x
2. Step 2: Convert to fraction form
   134,329.59/185,499.32 = 86,664.87/x
3. Step 3: Cross multiply
   134,329.59x = 185,499.32 × 86,664.87
4. Step 4: Simplify right side
   134,329.59x = 16,076,274,019.56
5. Step 5: Solve for x
   x = 16,076,274,019.56/134,329.59
6. Step 6: Final answer
   x = 119,677.83