Finding the Fourth Proportional to 56,819.31, 78,381.81 and 43,367.22

Step by Step Solution

1. Step 1: Write the proportion equation
   56,819.31 : 78,381.81 = 43,367.22 : x
2. Step 2: Convert to fraction form
   56,819.31/78,381.81 = 43,367.22/x
3. Step 3: Cross multiply
   56,819.31x = 78,381.81 × 43,367.22
4. Step 4: Simplify right side
   56,819.31x = 3,399,201,198.27
5. Step 5: Solve for x
   x = 3,399,201,198.27/56,819.31
6. Step 6: Final answer
   x = 59,824.75