Finding the Fourth Proportional to 105,072.98, 157,592.54 and 30,176.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105,072.98 : 157,592.54 = 30,176.09 : x
2. Step 2: Convert to fraction form
   105,072.98/157,592.54 = 30,176.09/x
3. Step 3: Cross multiply
   105,072.98x = 157,592.54 × 30,176.09
4. Step 4: Simplify right side
   105,072.98x = 4,755,525,882.41
5. Step 5: Solve for x
   x = 4,755,525,882.41/105,072.98
6. Step 6: Final answer
   x = 45,259.27