Finding the Fourth Proportional to 51,216, 70,697.52 and 34,458.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,216 : 70,697.52 = 34,458.72 : x
2. Step 2: Convert to fraction form
   51,216/70,697.52 = 34,458.72/x
3. Step 3: Cross multiply
   51,216x = 70,697.52 × 34,458.72
4. Step 4: Simplify right side
   51,216x = 2,436,146,046.37
5. Step 5: Solve for x
   x = 2,436,146,046.37/51,216
6. Step 6: Final answer
   x = 47,566.11