Finding the Fourth Proportional to 57,651.30, 85,903.83 and 51,363

Step by Step Solution

1. Step 1: Write the proportion equation
   57,651.30 : 85,903.83 = 51,363 : x
2. Step 2: Convert to fraction form
   57,651.30/85,903.83 = 51,363/x
3. Step 3: Cross multiply
   57,651.30x = 85,903.83 × 51,363
4. Step 4: Simplify right side
   57,651.30x = 4,412,278,420.29
5. Step 5: Solve for x
   x = 4,412,278,420.29/57,651.30
6. Step 6: Final answer
   x = 76,533.89