Finding the Fourth Proportional to 119,588.74, 165,031.69 and 65,872.51

Step by Step Solution

1. Step 1: Write the proportion equation
   119,588.74 : 165,031.69 = 65,872.51 : x
2. Step 2: Convert to fraction form
   119,588.74/165,031.69 = 65,872.51/x
3. Step 3: Cross multiply
   119,588.74x = 165,031.69 × 65,872.51
4. Step 4: Simplify right side
   119,588.74x = 10,871,050,495.32
5. Step 5: Solve for x
   x = 10,871,050,495.32/119,588.74
6. Step 6: Final answer
   x = 90,903.63