Finding the Fourth Proportional to 119,061.70, 164,306.85 and 65,345.74

Step by Step Solution

1. Step 1: Write the proportion equation
   119,061.70 : 164,306.85 = 65,345.74 : x
2. Step 2: Convert to fraction form
   119,061.70/164,306.85 = 65,345.74/x
3. Step 3: Cross multiply
   119,061.70x = 164,306.85 × 65,345.74
4. Step 4: Simplify right side
   119,061.70x = 10,736,752,700.32
5. Step 5: Solve for x
   x = 10,736,752,700.32/119,061.70
6. Step 6: Final answer
   x = 90,178.06