Finding the Fourth Proportional to 194,521.62, 268,337.79 and 158,263.59

Step by Step Solution

1. Step 1: Write the proportion equation
   194,521.62 : 268,337.79 = 158,263.59 : x
2. Step 2: Convert to fraction form
   194,521.62/268,337.79 = 158,263.59/x
3. Step 3: Cross multiply
   194,521.62x = 268,337.79 × 158,263.59
4. Step 4: Simplify right side
   194,521.62x = 42,468,101,978.07
5. Step 5: Solve for x
   x = 42,468,101,978.07/194,521.62
6. Step 6: Final answer
   x = 218,320.73