Finding the Fourth Proportional to 56,567.70, 78,063.30 and 38,662.29

Step by Step Solution

1. Step 1: Write the proportion equation
   56,567.70 : 78,063.30 = 38,662.29 : x
2. Step 2: Convert to fraction form
   56,567.70/78,063.30 = 38,662.29/x
3. Step 3: Cross multiply
   56,567.70x = 78,063.30 × 38,662.29
4. Step 4: Simplify right side
   56,567.70x = 3,018,105,942.96
5. Step 5: Solve for x
   x = 3,018,105,942.96/56,567.70
6. Step 6: Final answer
   x = 53,353.87