Finding the Fourth Proportional to 56,169.27, 77,513.58 and 31,018.77

Step by Step Solution

1. Step 1: Write the proportion equation
   56,169.27 : 77,513.58 = 31,018.77 : x
2. Step 2: Convert to fraction form
   56,169.27/77,513.58 = 31,018.77/x
3. Step 3: Cross multiply
   56,169.27x = 77,513.58 × 31,018.77
4. Step 4: Simplify right side
   56,169.27x = 2,404,375,909.90
5. Step 5: Solve for x
   x = 2,404,375,909.90/56,169.27
6. Step 6: Final answer
   x = 42,805.90