Finding the Fourth Proportional to 342,127.41, 472,116.78 and 189,156.75

Step by Step Solution

1. Step 1: Write the proportion equation
   342,127.41 : 472,116.78 = 189,156.75 : x
2. Step 2: Convert to fraction form
   342,127.41/472,116.78 = 189,156.75/x
3. Step 3: Cross multiply
   342,127.41x = 472,116.78 × 189,156.75
4. Step 4: Simplify right side
   342,127.41x = 89,304,075,725.27
5. Step 5: Solve for x
   x = 89,304,075,725.27/342,127.41
6. Step 6: Final answer
   x = 261,025.78