Finding the Fourth Proportional to 56,989.97, 78,649.89 and 37,839.77

Step by Step Solution

1. Step 1: Write the proportion equation
   56,989.97 : 78,649.89 = 37,839.77 : x
2. Step 2: Convert to fraction form
   56,989.97/78,649.89 = 37,839.77/x
3. Step 3: Cross multiply
   56,989.97x = 78,649.89 × 37,839.77
4. Step 4: Simplify right side
   56,989.97x = 2,976,093,354.88
5. Step 5: Solve for x
   x = 2,976,093,354.88/56,989.97
6. Step 6: Final answer
   x = 52,221.35