Finding the Fourth Proportional to 135,300.84, 186,591.78 and 116,174.61

Step by Step Solution

1. Step 1: Write the proportion equation
   135,300.84 : 186,591.78 = 116,174.61 : x
2. Step 2: Convert to fraction form
   135,300.84/186,591.78 = 116,174.61/x
3. Step 3: Cross multiply
   135,300.84x = 186,591.78 × 116,174.61
4. Step 4: Simplify right side
   135,300.84x = 21,677,227,270.71
5. Step 5: Solve for x
   x = 21,677,227,270.71/135,300.84
6. Step 6: Final answer
   x = 160,215.02