Finding the Fourth Proportional to 119,411.71, 164,788.15 and 65,695.57

Step by Step Solution

1. Step 1: Write the proportion equation
   119,411.71 : 164,788.15 = 65,695.57 : x
2. Step 2: Convert to fraction form
   119,411.71/164,788.15 = 65,695.57/x
3. Step 3: Cross multiply
   119,411.71x = 164,788.15 × 65,695.57
4. Step 4: Simplify right side
   119,411.71x = 10,825,851,443.50
5. Step 5: Solve for x
   x = 10,825,851,443.50/119,411.71
6. Step 6: Final answer
   x = 90,659.88