Finding the Fourth Proportional to 30,762.72, 42,455.52 and 19,584

Step by Step Solution

1. Step 1: Write the proportion equation
   30,762.72 : 42,455.52 = 19,584 : x
2. Step 2: Convert to fraction form
   30,762.72/42,455.52 = 19,584/x
3. Step 3: Cross multiply
   30,762.72x = 42,455.52 × 19,584
4. Step 4: Simplify right side
   30,762.72x = 831,448,903.68
5. Step 5: Solve for x
   x = 831,448,903.68/30,762.72
6. Step 6: Final answer
   x = 27,027.81