Finding the Fourth Proportional to 119,572.88, 165,018.06 and 65,857.88

Step by Step Solution

1. Step 1: Write the proportion equation
   119,572.88 : 165,018.06 = 65,857.88 : x
2. Step 2: Convert to fraction form
   119,572.88/165,018.06 = 65,857.88/x
3. Step 3: Cross multiply
   119,572.88x = 165,018.06 × 65,857.88
4. Step 4: Simplify right side
   119,572.88x = 10,867,740,005.86
5. Step 5: Solve for x
   x = 10,867,740,005.86/119,572.88
6. Step 6: Final answer
   x = 90,888.00