Finding the Fourth Proportional to 58,582.94, 87,887.78 and 19,139.18

Step by Step Solution

1. Step 1: Write the proportion equation
   58,582.94 : 87,887.78 = 19,139.18 : x
2. Step 2: Convert to fraction form
   58,582.94/87,887.78 = 19,139.18/x
3. Step 3: Cross multiply
   58,582.94x = 87,887.78 × 19,139.18
4. Step 4: Simplify right side
   58,582.94x = 1,682,099,945.52
5. Step 5: Solve for x
   x = 1,682,099,945.52/58,582.94
6. Step 6: Final answer
   x = 28,713.14