Finding the Fourth Proportional to 49,007.40, 73,316.70 and 42,505.80

Step by Step Solution

1. Step 1: Write the proportion equation
   49,007.40 : 73,316.70 = 42,505.80 : x
2. Step 2: Convert to fraction form
   49,007.40/73,316.70 = 42,505.80/x
3. Step 3: Cross multiply
   49,007.40x = 73,316.70 × 42,505.80
4. Step 4: Simplify right side
   49,007.40x = 3,116,384,986.86
5. Step 5: Solve for x
   x = 3,116,384,986.86/49,007.40
6. Step 6: Final answer
   x = 63,590.09