Finding the Fourth Proportional to 92,960.46, 139,253.58 and 42,971.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,960.46 : 139,253.58 = 42,971.72 : x
2. Step 2: Convert to fraction form
   92,960.46/139,253.58 = 42,971.72/x
3. Step 3: Cross multiply
   92,960.46x = 139,253.58 × 42,971.72
4. Step 4: Simplify right side
   92,960.46x = 5,983,965,152.49
5. Step 5: Solve for x
   x = 5,983,965,152.49/92,960.46
6. Step 6: Final answer
   x = 64,371.08