Finding the Fourth Proportional to 56,770.20, 78,339.42 and 32,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,770.20 : 78,339.42 = 32,892.72 : x
2. Step 2: Convert to fraction form
   56,770.20/78,339.42 = 32,892.72/x
3. Step 3: Cross multiply
   56,770.20x = 78,339.42 × 32,892.72
4. Step 4: Simplify right side
   56,770.20x = 2,576,796,607.02
5. Step 5: Solve for x
   x = 2,576,796,607.02/56,770.20
6. Step 6: Final answer
   x = 45,389.95