Finding the Fourth Proportional to 137,721, 206,668.89 and 58,835.82

Step by Step Solution

1. Step 1: Write the proportion equation
   137,721 : 206,668.89 = 58,835.82 : x
2. Step 2: Convert to fraction form
   137,721/206,668.89 = 58,835.82/x
3. Step 3: Cross multiply
   137,721x = 206,668.89 × 58,835.82
4. Step 4: Simplify right side
   137,721x = 12,159,533,611.64
5. Step 5: Solve for x
   x = 12,159,533,611.64/137,721
6. Step 6: Final answer
   x = 88,291.06