Finding the Fourth Proportional to 158,789.25, 238,245.98 and 69,980.31

Step by Step Solution

1. Step 1: Write the proportion equation
   158,789.25 : 238,245.98 = 69,980.31 : x
2. Step 2: Convert to fraction form
   158,789.25/238,245.98 = 69,980.31/x
3. Step 3: Cross multiply
   158,789.25x = 238,245.98 × 69,980.31
4. Step 4: Simplify right side
   158,789.25x = 16,672,527,186.75
5. Step 5: Solve for x
   x = 16,672,527,186.75/158,789.25
6. Step 6: Final answer
   x = 104,997.83