Finding the Fourth Proportional to 42,619.52, 58,820.48 and 30,722.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,619.52 : 58,820.48 = 30,722.24 : x
2. Step 2: Convert to fraction form
   42,619.52/58,820.48 = 30,722.24/x
3. Step 3: Cross multiply
   42,619.52x = 58,820.48 × 30,722.24
4. Step 4: Simplify right side
   42,619.52x = 1,807,096,903.48
5. Step 5: Solve for x
   x = 1,807,096,903.48/42,619.52
6. Step 6: Final answer
   x = 42,400.69