Finding the Fourth Proportional to 122,638.89, 183,879.18 and 58,562.37

Step by Step Solution

1. Step 1: Write the proportion equation
   122,638.89 : 183,879.18 = 58,562.37 : x
2. Step 2: Convert to fraction form
   122,638.89/183,879.18 = 58,562.37/x
3. Step 3: Cross multiply
   122,638.89x = 183,879.18 × 58,562.37
4. Step 4: Simplify right side
   122,638.89x = 10,768,400,574.46
5. Step 5: Solve for x
   x = 10,768,400,574.46/122,638.89
6. Step 6: Final answer
   x = 87,805.76