Finding the Fourth Proportional to 91,910.92, 137,844.78 and 58,582.12

Step by Step Solution

1. Step 1: Write the proportion equation
   91,910.92 : 137,844.78 = 58,582.12 : x
2. Step 2: Convert to fraction form
   91,910.92/137,844.78 = 58,582.12/x
3. Step 3: Cross multiply
   91,910.92x = 137,844.78 × 58,582.12
4. Step 4: Simplify right side
   91,910.92x = 8,075,239,443.33
5. Step 5: Solve for x
   x = 8,075,239,443.33/91,910.92
6. Step 6: Final answer
   x = 87,859.41