Finding the Fourth Proportional to 42,673.76, 58,895.76 and 30,776.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,673.76 : 58,895.76 = 30,776.48 : x
2. Step 2: Convert to fraction form
   42,673.76/58,895.76 = 30,776.48/x
3. Step 3: Cross multiply
   42,673.76x = 58,895.76 × 30,776.48
4. Step 4: Simplify right side
   42,673.76x = 1,812,604,179.72
5. Step 5: Solve for x
   x = 1,812,604,179.72/42,673.76
6. Step 6: Final answer
   x = 42,475.85