Finding the Fourth Proportional to 119,463.72, 164,856.45 and 65,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   119,463.72 : 164,856.45 = 65,748.72 : x
2. Step 2: Convert to fraction form
   119,463.72/164,856.45 = 65,748.72/x
3. Step 3: Cross multiply
   119,463.72x = 164,856.45 × 65,748.72
4. Step 4: Simplify right side
   119,463.72x = 10,839,100,571.24
5. Step 5: Solve for x
   x = 10,839,100,571.24/119,463.72
6. Step 6: Final answer
   x = 90,731.32