Finding the Fourth Proportional to 42,347.10, 63,500.13 and 12,759.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,347.10 : 63,500.13 = 12,759.42 : x
2. Step 2: Convert to fraction form
   42,347.10/63,500.13 = 12,759.42/x
3. Step 3: Cross multiply
   42,347.10x = 63,500.13 × 12,759.42
4. Step 4: Simplify right side
   42,347.10x = 810,224,828.72
5. Step 5: Solve for x
   x = 810,224,828.72/42,347.10
6. Step 6: Final answer
   x = 19,132.95