Finding the Fourth Proportional to 47,288.72, 64,785.28 and 45,516.08

Step by Step Solution

1. Step 1: Write the proportion equation
   47,288.72 : 64,785.28 = 45,516.08 : x
2. Step 2: Convert to fraction form
   47,288.72/64,785.28 = 45,516.08/x
3. Step 3: Cross multiply
   47,288.72x = 64,785.28 × 45,516.08
4. Step 4: Simplify right side
   47,288.72x = 2,948,771,987.30
5. Step 5: Solve for x
   x = 2,948,771,987.30/47,288.72
6. Step 6: Final answer
   x = 62,356.77