Finding the Fourth Proportional to 35,820.69, 49,431.06 and 19,905

Step by Step Solution

1. Step 1: Write the proportion equation
   35,820.69 : 49,431.06 = 19,905 : x
2. Step 2: Convert to fraction form
   35,820.69/49,431.06 = 19,905/x
3. Step 3: Cross multiply
   35,820.69x = 49,431.06 × 19,905
4. Step 4: Simplify right side
   35,820.69x = 983,925,249.30
5. Step 5: Solve for x
   x = 983,925,249.30/35,820.69
6. Step 6: Final answer
   x = 27,468.07