Finding the Fourth Proportional to 46,471, 69,667.30 and 20,155.92

Step by Step Solution

1. Step 1: Write the proportion equation
   46,471 : 69,667.30 = 20,155.92 : x
2. Step 2: Convert to fraction form
   46,471/69,667.30 = 20,155.92/x
3. Step 3: Cross multiply
   46,471x = 69,667.30 × 20,155.92
4. Step 4: Simplify right side
   46,471x = 1,404,208,525.42
5. Step 5: Solve for x
   x = 1,404,208,525.42/46,471
6. Step 6: Final answer
   x = 30,216.88