Finding the Fourth Proportional to 22,848, 31,534.56 and 12,912

Step by Step Solution

1. Step 1: Write the proportion equation
   22,848 : 31,534.56 = 12,912 : x
2. Step 2: Convert to fraction form
   22,848/31,534.56 = 12,912/x
3. Step 3: Cross multiply
   22,848x = 31,534.56 × 12,912
4. Step 4: Simplify right side
   22,848x = 407,174,238.72
5. Step 5: Solve for x
   x = 407,174,238.72/22,848
6. Step 6: Final answer
   x = 17,821.00