Finding the Fourth Proportional to 194,602.89, 268,551.86 and 105,178.89

Step by Step Solution

1. Step 1: Write the proportion equation
   194,602.89 : 268,551.86 = 105,178.89 : x
2. Step 2: Convert to fraction form
   194,602.89/268,551.86 = 105,178.89/x
3. Step 3: Cross multiply
   194,602.89x = 268,551.86 × 105,178.89
4. Step 4: Simplify right side
   194,602.89x = 28,245,985,199.48
5. Step 5: Solve for x
   x = 28,245,985,199.48/194,602.89
6. Step 6: Final answer
   x = 145,146.80