Finding the Fourth Proportional to 158,666.29, 238,061.67 and 69,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,666.29 : 238,061.67 = 69,857.50 : x
2. Step 2: Convert to fraction form
   158,666.29/238,061.67 = 69,857.50/x
3. Step 3: Cross multiply
   158,666.29x = 238,061.67 × 69,857.50
4. Step 4: Simplify right side
   158,666.29x = 16,630,393,112.03
5. Step 5: Solve for x
   x = 16,630,393,112.03/158,666.29
6. Step 6: Final answer
   x = 104,813.65