Finding the Fourth Proportional to 12,946, 19,419.18 and 3,712

Step by Step Solution

1. Step 1: Write the proportion equation
   12,946 : 19,419.18 = 3,712 : x
2. Step 2: Convert to fraction form
   12,946/19,419.18 = 3,712/x
3. Step 3: Cross multiply
   12,946x = 19,419.18 × 3,712
4. Step 4: Simplify right side
   12,946x = 72,083,996.16
5. Step 5: Solve for x
   x = 72,083,996.16/12,946
6. Step 6: Final answer
   x = 5,568.05