Finding the Fourth Proportional to 51,748.46, 77,676.98 and 45,863

Step by Step Solution

1. Step 1: Write the proportion equation
   51,748.46 : 77,676.98 = 45,863 : x
2. Step 2: Convert to fraction form
   51,748.46/77,676.98 = 45,863/x
3. Step 3: Cross multiply
   51,748.46x = 77,676.98 × 45,863
4. Step 4: Simplify right side
   51,748.46x = 3,562,499,104.43
5. Step 5: Solve for x
   x = 3,562,499,104.43/51,748.46
6. Step 6: Final answer
   x = 68,842.61