Finding the Fourth Proportional to 42,309.86, 63,452.00 and 12,719.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,309.86 : 63,452.00 = 12,719.84 : x
2. Step 2: Convert to fraction form
   42,309.86/63,452.00 = 12,719.84/x
3. Step 3: Cross multiply
   42,309.86x = 63,452.00 × 12,719.84
4. Step 4: Simplify right side
   42,309.86x = 807,099,002.22
5. Step 5: Solve for x
   x = 807,099,002.22/42,309.86
6. Step 6: Final answer
   x = 19,075.91