Finding the Fourth Proportional to 12,713.84, 19,070.52 and 3,948.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,713.84 : 19,070.52 = 3,948.56 : x
2. Step 2: Convert to fraction form
   12,713.84/19,070.52 = 3,948.56/x
3. Step 3: Cross multiply
   12,713.84x = 19,070.52 × 3,948.56
4. Step 4: Simplify right side
   12,713.84x = 75,301,092.45
5. Step 5: Solve for x
   x = 75,301,092.45/12,713.84
6. Step 6: Final answer
   x = 5,922.77