Finding the Fourth Proportional to 158,499.25, 238,045.04 and 139,530.61

Step by Step Solution

1. Step 1: Write the proportion equation
   158,499.25 : 238,045.04 = 139,530.61 : x
2. Step 2: Convert to fraction form
   158,499.25/238,045.04 = 139,530.61/x
3. Step 3: Cross multiply
   158,499.25x = 238,045.04 × 139,530.61
4. Step 4: Simplify right side
   158,499.25x = 33,214,569,638.67
5. Step 5: Solve for x
   x = 33,214,569,638.67/158,499.25
6. Step 6: Final answer
   x = 209,556.64