Finding the Fourth Proportional to 56,764.72, 78,334.88 and 32,890.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,764.72 : 78,334.88 = 32,890.88 : x
2. Step 2: Convert to fraction form
   56,764.72/78,334.88 = 32,890.88/x
3. Step 3: Cross multiply
   56,764.72x = 78,334.88 × 32,890.88
4. Step 4: Simplify right side
   56,764.72x = 2,576,503,137.89
5. Step 5: Solve for x
   x = 2,576,503,137.89/56,764.72
6. Step 6: Final answer
   x = 45,389.16