Finding the Fourth Proportional to 46,089.32, 69,170.89 and 21,141.12

Step by Step Solution

1. Step 1: Write the proportion equation
   46,089.32 : 69,170.89 = 21,141.12 : x
2. Step 2: Convert to fraction form
   46,089.32/69,170.89 = 21,141.12/x
3. Step 3: Cross multiply
   46,089.32x = 69,170.89 × 21,141.12
4. Step 4: Simplify right side
   46,089.32x = 1,462,350,086.00
5. Step 5: Solve for x
   x = 1,462,350,086.00/46,089.32
6. Step 6: Final answer
   x = 31,728.61