Finding the Fourth Proportional to 51,978.52, 77,431.34 and 48,751.48

Step by Step Solution

1. Step 1: Write the proportion equation
   51,978.52 : 77,431.34 = 48,751.48 : x
2. Step 2: Convert to fraction form
   51,978.52/77,431.34 = 48,751.48/x
3. Step 3: Cross multiply
   51,978.52x = 77,431.34 × 48,751.48
4. Step 4: Simplify right side
   51,978.52x = 3,774,892,423.38
5. Step 5: Solve for x
   x = 3,774,892,423.38/51,978.52
6. Step 6: Final answer
   x = 72,624.08