Finding the Fourth Proportional to 119,426.33, 164,812.31 and 65,715.29

Step by Step Solution

1. Step 1: Write the proportion equation
   119,426.33 : 164,812.31 = 65,715.29 : x
2. Step 2: Convert to fraction form
   119,426.33/164,812.31 = 65,715.29/x
3. Step 3: Cross multiply
   119,426.33x = 164,812.31 × 65,715.29
4. Step 4: Simplify right side
   119,426.33x = 10,830,688,418.64
5. Step 5: Solve for x
   x = 10,830,688,418.64/119,426.33
6. Step 6: Final answer
   x = 90,689.28