Finding the Fourth Proportional to 19,878.69, 29,817.09 and 5,838.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,878.69 : 29,817.09 = 5,838.15 : x
2. Step 2: Convert to fraction form
   19,878.69/29,817.09 = 5,838.15/x
3. Step 3: Cross multiply
   19,878.69x = 29,817.09 × 5,838.15
4. Step 4: Simplify right side
   19,878.69x = 174,076,643.98
5. Step 5: Solve for x
   x = 174,076,643.98/19,878.69
6. Step 6: Final answer
   x = 8,756.95