Finding the Fourth Proportional to 105,139.34, 157,711.25 and 37,675.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,139.34 : 157,711.25 = 37,675.78 : x
2. Step 2: Convert to fraction form
   105,139.34/157,711.25 = 37,675.78/x
3. Step 3: Cross multiply
   105,139.34x = 157,711.25 × 37,675.78
4. Step 4: Simplify right side
   105,139.34x = 5,941,894,058.44
5. Step 5: Solve for x
   x = 5,941,894,058.44/105,139.34
6. Step 6: Final answer
   x = 56,514.47