Finding the Fourth Proportional to 46,499.71, 69,758.55 and 19,845.31

Step by Step Solution

1. Step 1: Write the proportion equation
   46,499.71 : 69,758.55 = 19,845.31 : x
2. Step 2: Convert to fraction form
   46,499.71/69,758.55 = 19,845.31/x
3. Step 3: Cross multiply
   46,499.71x = 69,758.55 × 19,845.31
4. Step 4: Simplify right side
   46,499.71x = 1,384,380,049.90
5. Step 5: Solve for x
   x = 1,384,380,049.90/46,499.71
6. Step 6: Final answer
   x = 29,771.80