Finding the Fourth Proportional to 12,751.58, 19,128.82 and 3,391.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,751.58 : 19,128.82 = 3,391.98 : x
2. Step 2: Convert to fraction form
   12,751.58/19,128.82 = 3,391.98/x
3. Step 3: Cross multiply
   12,751.58x = 19,128.82 × 3,391.98
4. Step 4: Simplify right side
   12,751.58x = 64,884,505.78
5. Step 5: Solve for x
   x = 64,884,505.78/12,751.58
6. Step 6: Final answer
   x = 5,088.35