Finding the Fourth Proportional to 200,458.52, 276,632.88 and 109,817.78

Step by Step Solution

1. Step 1: Write the proportion equation
   200,458.52 : 276,632.88 = 109,817.78 : x
2. Step 2: Convert to fraction form
   200,458.52/276,632.88 = 109,817.78/x
3. Step 3: Cross multiply
   200,458.52x = 276,632.88 × 109,817.78
4. Step 4: Simplify right side
   200,458.52x = 30,379,208,756.61
5. Step 5: Solve for x
   x = 30,379,208,756.61/200,458.52
6. Step 6: Final answer
   x = 151,548.60