Finding the Fourth Proportional to 42,982.74, 64,411.80 and 30,527.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,982.74 : 64,411.80 = 30,527.16 : x
2. Step 2: Convert to fraction form
   42,982.74/64,411.80 = 30,527.16/x
3. Step 3: Cross multiply
   42,982.74x = 64,411.80 × 30,527.16
4. Step 4: Simplify right side
   42,982.74x = 1,966,309,324.49
5. Step 5: Solve for x
   x = 1,966,309,324.49/42,982.74
6. Step 6: Final answer
   x = 45,746.49