Finding the Fourth Proportional to 42,979.74, 64,407.30 and 30,524.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,979.74 : 64,407.30 = 30,524.16 : x
2. Step 2: Convert to fraction form
   42,979.74/64,407.30 = 30,524.16/x
3. Step 3: Cross multiply
   42,979.74x = 64,407.30 × 30,524.16
4. Step 4: Simplify right side
   42,979.74x = 1,965,978,730.37
5. Step 5: Solve for x
   x = 1,965,978,730.37/42,979.74
6. Step 6: Final answer
   x = 45,741.99