Finding the Fourth Proportional to 42,982.32, 64,572.32 and 30,532.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,982.32 : 64,572.32 = 30,532.64 : x
2. Step 2: Convert to fraction form
   42,982.32/64,572.32 = 30,532.64/x
3. Step 3: Cross multiply
   42,982.32x = 64,572.32 × 30,532.64
4. Step 4: Simplify right side
   42,982.32x = 1,971,563,400.52
5. Step 5: Solve for x
   x = 1,971,563,400.52/42,982.32
6. Step 6: Final answer
   x = 45,869.17