Finding the Fourth Proportional to 64,981.70, 89,754.72 and 47,048.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,981.70 : 89,754.72 = 47,048.30 : x
2. Step 2: Convert to fraction form
   64,981.70/89,754.72 = 47,048.30/x
3. Step 3: Cross multiply
   64,981.70x = 89,754.72 × 47,048.30
4. Step 4: Simplify right side
   64,981.70x = 4,222,806,992.98
5. Step 5: Solve for x
   x = 4,222,806,992.98/64,981.70
6. Step 6: Final answer
   x = 64,984.56