Finding the Fourth Proportional to 137,323.42, 205,818.79 and 58,271.57

Step by Step Solution

1. Step 1: Write the proportion equation
   137,323.42 : 205,818.79 = 58,271.57 : x
2. Step 2: Convert to fraction form
   137,323.42/205,818.79 = 58,271.57/x
3. Step 3: Cross multiply
   137,323.42x = 205,818.79 × 58,271.57
4. Step 4: Simplify right side
   137,323.42x = 11,993,384,028.80
5. Step 5: Solve for x
   x = 11,993,384,028.80/137,323.42
6. Step 6: Final answer
   x = 87,336.77