Finding the Fourth Proportional to 56,404.42, 77,841.21 and 31,253.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,404.42 : 77,841.21 = 31,253.38 : x
2. Step 2: Convert to fraction form
   56,404.42/77,841.21 = 31,253.38/x
3. Step 3: Cross multiply
   56,404.42x = 77,841.21 × 31,253.38
4. Step 4: Simplify right side
   56,404.42x = 2,432,800,915.79
5. Step 5: Solve for x
   x = 2,432,800,915.79/56,404.42
6. Step 6: Final answer
   x = 43,131.39