Finding the Fourth Proportional to 119,706.09, 165,186.81 and 65,988.15

Step by Step Solution

1. Step 1: Write the proportion equation
   119,706.09 : 165,186.81 = 65,988.15 : x
2. Step 2: Convert to fraction form
   119,706.09/165,186.81 = 65,988.15/x
3. Step 3: Cross multiply
   119,706.09x = 165,186.81 × 65,988.15
4. Step 4: Simplify right side
   119,706.09x = 10,900,371,996.30
5. Step 5: Solve for x
   x = 10,900,371,996.30/119,706.09
6. Step 6: Final answer
   x = 91,059.46