Finding the Fourth Proportional to 89,854.63, 124,039.24 and 58,039.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,854.63 : 124,039.24 = 58,039.05 : x
2. Step 2: Convert to fraction form
   89,854.63/124,039.24 = 58,039.05/x
3. Step 3: Cross multiply
   89,854.63x = 124,039.24 × 58,039.05
4. Step 4: Simplify right side
   89,854.63x = 7,199,119,652.32
5. Step 5: Solve for x
   x = 7,199,119,652.32/89,854.63
6. Step 6: Final answer
   x = 80,119.63