Finding the Fourth Proportional to 47,290.72, 64,788.02 and 45,518.08

Step by Step Solution

1. Step 1: Write the proportion equation
   47,290.72 : 64,788.02 = 45,518.08 : x
2. Step 2: Convert to fraction form
   47,290.72/64,788.02 = 45,518.08/x
3. Step 3: Cross multiply
   47,290.72x = 64,788.02 × 45,518.08
4. Step 4: Simplify right side
   47,290.72x = 2,949,026,277.40
5. Step 5: Solve for x
   x = 2,949,026,277.40/47,290.72
6. Step 6: Final answer
   x = 62,359.51