Finding the Fourth Proportional to 124,734.98, 186,971.78 and 58,120.18

Step by Step Solution

1. Step 1: Write the proportion equation
   124,734.98 : 186,971.78 = 58,120.18 : x
2. Step 2: Convert to fraction form
   124,734.98/186,971.78 = 58,120.18/x
3. Step 3: Cross multiply
   124,734.98x = 186,971.78 × 58,120.18
4. Step 4: Simplify right side
   124,734.98x = 10,866,833,508.52
5. Step 5: Solve for x
   x = 10,866,833,508.52/124,734.98
6. Step 6: Final answer
   x = 87,119.38