Finding the Fourth Proportional to 119,685.84, 165,105.72 and 91,342.32

Step by Step Solution

1. Step 1: Write the proportion equation
   119,685.84 : 165,105.72 = 91,342.32 : x
2. Step 2: Convert to fraction form
   119,685.84/165,105.72 = 91,342.32/x
3. Step 3: Cross multiply
   119,685.84x = 165,105.72 × 91,342.32
4. Step 4: Simplify right side
   119,685.84x = 15,081,139,510.07
5. Step 5: Solve for x
   x = 15,081,139,510.07/119,685.84
6. Step 6: Final answer
   x = 126,006.05