Finding the Fourth Proportional to 49,308.16, 73,898.68 and 42,957.36

Step by Step Solution

1. Step 1: Write the proportion equation
   49,308.16 : 73,898.68 = 42,957.36 : x
2. Step 2: Convert to fraction form
   49,308.16/73,898.68 = 42,957.36/x
3. Step 3: Cross multiply
   49,308.16x = 73,898.68 × 42,957.36
4. Step 4: Simplify right side
   49,308.16x = 3,174,492,200.28
5. Step 5: Solve for x
   x = 3,174,492,200.28/49,308.16
6. Step 6: Final answer
   x = 64,380.67