Finding the Fourth Proportional to 42,970.14, 64,498.92 and 30,504.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,970.14 : 64,498.92 = 30,504.24 : x
2. Step 2: Convert to fraction form
   42,970.14/64,498.92 = 30,504.24/x
3. Step 3: Cross multiply
   42,970.14x = 64,498.92 × 30,504.24
4. Step 4: Simplify right side
   42,970.14x = 1,967,490,535.42
5. Step 5: Solve for x
   x = 1,967,490,535.42/42,970.14
6. Step 6: Final answer
   x = 45,787.39