Finding the Fourth Proportional to 46,086.82, 69,167.15 and 21,138.63

Step by Step Solution

1. Step 1: Write the proportion equation
   46,086.82 : 69,167.15 = 21,138.63 : x
2. Step 2: Convert to fraction form
   46,086.82/69,167.15 = 21,138.63/x
3. Step 3: Cross multiply
   46,086.82x = 69,167.15 × 21,138.63
4. Step 4: Simplify right side
   46,086.82x = 1,462,098,792.00
5. Step 5: Solve for x
   x = 1,462,098,792.00/46,086.82
6. Step 6: Final answer
   x = 31,724.88