Finding the Fourth Proportional to 47,098.72, 64,933.38 and 40,355.46

Step by Step Solution

1. Step 1: Write the proportion equation
   47,098.72 : 64,933.38 = 40,355.46 : x
2. Step 2: Convert to fraction form
   47,098.72/64,933.38 = 40,355.46/x
3. Step 3: Cross multiply
   47,098.72x = 64,933.38 × 40,355.46
4. Step 4: Simplify right side
   47,098.72x = 2,620,416,419.25
5. Step 5: Solve for x
   x = 2,620,416,419.25/47,098.72
6. Step 6: Final answer
   x = 55,636.68