Finding the Fourth Proportional to 189,804.72, 261,970.56 and 157,942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   189,804.72 : 261,970.56 = 157,942.56 : x
2. Step 2: Convert to fraction form
   189,804.72/261,970.56 = 157,942.56/x
3. Step 3: Cross multiply
   189,804.72x = 261,970.56 × 157,942.56
4. Step 4: Simplify right side
   189,804.72x = 41,376,300,891.03
5. Step 5: Solve for x
   x = 41,376,300,891.03/189,804.72
6. Step 6: Final answer
   x = 217,994.06