Finding the Fourth Proportional to 22,712, 31,343.04 and 12,776

Step by Step Solution

1. Step 1: Write the proportion equation
   22,712 : 31,343.04 = 12,776 : x
2. Step 2: Convert to fraction form
   22,712/31,343.04 = 12,776/x
3. Step 3: Cross multiply
   22,712x = 31,343.04 × 12,776
4. Step 4: Simplify right side
   22,712x = 400,438,679.04
5. Step 5: Solve for x
   x = 400,438,679.04/22,712
6. Step 6: Final answer
   x = 17,631.15