Finding the Fourth Proportional to 19,839.69, 29,738.52 and 9,300.87

Step by Step Solution

1. Step 1: Write the proportion equation
   19,839.69 : 29,738.52 = 9,300.87 : x
2. Step 2: Convert to fraction form
   19,839.69/29,738.52 = 9,300.87/x
3. Step 3: Cross multiply
   19,839.69x = 29,738.52 × 9,300.87
4. Step 4: Simplify right side
   19,839.69x = 276,594,108.51
5. Step 5: Solve for x
   x = 276,594,108.51/19,839.69
6. Step 6: Final answer
   x = 13,941.45