Finding the Fourth Proportional to 56,406.38, 77,846.27 and 31,255.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,406.38 : 77,846.27 = 31,255.88 : x
2. Step 2: Convert to fraction form
   56,406.38/77,846.27 = 31,255.88/x
3. Step 3: Cross multiply
   56,406.38x = 77,846.27 × 31,255.88
4. Step 4: Simplify right side
   56,406.38x = 2,433,153,128.06
5. Step 5: Solve for x
   x = 2,433,153,128.06/56,406.38
6. Step 6: Final answer
   x = 43,136.14