Finding the Fourth Proportional to 56,882.05, 78,496.59 and 31,388.61

Step by Step Solution

1. Step 1: Write the proportion equation
   56,882.05 : 78,496.59 = 31,388.61 : x
2. Step 2: Convert to fraction form
   56,882.05/78,496.59 = 31,388.61/x
3. Step 3: Cross multiply
   56,882.05x = 78,496.59 × 31,388.61
4. Step 4: Simplify right side
   56,882.05x = 2,463,899,261.91
5. Step 5: Solve for x
   x = 2,463,899,261.91/56,882.05
6. Step 6: Final answer
   x = 43,315.94