Finding the Fourth Proportional to 105,764.76, 145,946.12 and 60,433.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105,764.76 : 145,946.12 = 60,433.72 : x
2. Step 2: Convert to fraction form
   105,764.76/145,946.12 = 60,433.72/x
3. Step 3: Cross multiply
   105,764.76x = 145,946.12 × 60,433.72
4. Step 4: Simplify right side
   105,764.76x = 8,820,066,951.17
5. Step 5: Solve for x
   x = 8,820,066,951.17/105,764.76
6. Step 6: Final answer
   x = 83,393.25