Finding the Fourth Proportional to 70,142.74, 105,144.84 and 27,997.42

Step by Step Solution

1. Step 1: Write the proportion equation
   70,142.74 : 105,144.84 = 27,997.42 : x
2. Step 2: Convert to fraction form
   70,142.74/105,144.84 = 27,997.42/x
3. Step 3: Cross multiply
   70,142.74x = 105,144.84 × 27,997.42
4. Step 4: Simplify right side
   70,142.74x = 2,943,784,246.31
5. Step 5: Solve for x
   x = 2,943,784,246.31/70,142.74
6. Step 6: Final answer
   x = 41,968.48