Finding the Fourth Proportional to 194,402, 268,274.76 and 104,978

Step by Step Solution

1. Step 1: Write the proportion equation
   194,402 : 268,274.76 = 104,978 : x
2. Step 2: Convert to fraction form
   194,402/268,274.76 = 104,978/x
3. Step 3: Cross multiply
   194,402x = 268,274.76 × 104,978
4. Step 4: Simplify right side
   194,402x = 28,162,947,755.28
5. Step 5: Solve for x
   x = 28,162,947,755.28/194,402
6. Step 6: Final answer
   x = 144,869.64