Finding the Fourth Proportional to 56,169.48, 77,509.98 and 31,017

Step by Step Solution

1. Step 1: Write the proportion equation
   56,169.48 : 77,509.98 = 31,017 : x
2. Step 2: Convert to fraction form
   56,169.48/77,509.98 = 31,017/x
3. Step 3: Cross multiply
   56,169.48x = 77,509.98 × 31,017
4. Step 4: Simplify right side
   56,169.48x = 2,404,127,049.66
5. Step 5: Solve for x
   x = 2,404,127,049.66/56,169.48
6. Step 6: Final answer
   x = 42,801.31