Finding the Fourth Proportional to 158,897.34, 238,342.37 and 79,990.38

Step by Step Solution

1. Step 1: Write the proportion equation
   158,897.34 : 238,342.37 = 79,990.38 : x
2. Step 2: Convert to fraction form
   158,897.34/238,342.37 = 79,990.38/x
3. Step 3: Cross multiply
   158,897.34x = 238,342.37 × 79,990.38
4. Step 4: Simplify right side
   158,897.34x = 19,065,096,346.45
5. Step 5: Solve for x
   x = 19,065,096,346.45/158,897.34
6. Step 6: Final answer
   x = 119,983.74