Finding the Fourth Proportional to 34,314.68, 51,472.56 and 13,538

Step by Step Solution

1. Step 1: Write the proportion equation
   34,314.68 : 51,472.56 = 13,538 : x
2. Step 2: Convert to fraction form
   34,314.68/51,472.56 = 13,538/x
3. Step 3: Cross multiply
   34,314.68x = 51,472.56 × 13,538
4. Step 4: Simplify right side
   34,314.68x = 696,835,517.28
5. Step 5: Solve for x
   x = 696,835,517.28/34,314.68
6. Step 6: Final answer
   x = 20,307.21