Finding the Fourth Proportional to 45,797.31, 69,049.14 and 45,513

Step by Step Solution

1. Step 1: Write the proportion equation
   45,797.31 : 69,049.14 = 45,513 : x
2. Step 2: Convert to fraction form
   45,797.31/69,049.14 = 45,513/x
3. Step 3: Cross multiply
   45,797.31x = 69,049.14 × 45,513
4. Step 4: Simplify right side
   45,797.31x = 3,142,633,508.82
5. Step 5: Solve for x
   x = 3,142,633,508.82/45,797.31
6. Step 6: Final answer
   x = 68,620.48