Finding the Fourth Proportional to 46,645.56, 69,695.35 and 45,012.28

Step by Step Solution

1. Step 1: Write the proportion equation
   46,645.56 : 69,695.35 = 45,012.28 : x
2. Step 2: Convert to fraction form
   46,645.56/69,695.35 = 45,012.28/x
3. Step 3: Cross multiply
   46,645.56x = 69,695.35 × 45,012.28
4. Step 4: Simplify right side
   46,645.56x = 3,137,146,608.90
5. Step 5: Solve for x
   x = 3,137,146,608.90/46,645.56
6. Step 6: Final answer
   x = 67,254.99