Finding the Fourth Proportional to 46,609.79, 69,903.59 and 12,875.06

Step by Step Solution

1. Step 1: Write the proportion equation
   46,609.79 : 69,903.59 = 12,875.06 : x
2. Step 2: Convert to fraction form
   46,609.79/69,903.59 = 12,875.06/x
3. Step 3: Cross multiply
   46,609.79x = 69,903.59 × 12,875.06
4. Step 4: Simplify right side
   46,609.79x = 900,012,705.06
5. Step 5: Solve for x
   x = 900,012,705.06/46,609.79
6. Step 6: Final answer
   x = 19,309.52