Finding the Fourth Proportional to 56,198.48, 77,554.72 and 31,048.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,198.48 : 77,554.72 = 31,048.56 : x
2. Step 2: Convert to fraction form
   56,198.48/77,554.72 = 31,048.56/x
3. Step 3: Cross multiply
   56,198.48x = 77,554.72 × 31,048.56
4. Step 4: Simplify right side
   56,198.48x = 2,407,962,377.20
5. Step 5: Solve for x
   x = 2,407,962,377.20/56,198.48
6. Step 6: Final answer
   x = 42,847.46