Finding the Fourth Proportional to 50,899.58, 76,354.60 and 17,619.59

Step by Step Solution

1. Step 1: Write the proportion equation
   50,899.58 : 76,354.60 = 17,619.59 : x
2. Step 2: Convert to fraction form
   50,899.58/76,354.60 = 17,619.59/x
3. Step 3: Cross multiply
   50,899.58x = 76,354.60 × 17,619.59
4. Step 4: Simplify right side
   50,899.58x = 1,345,336,746.61
5. Step 5: Solve for x
   x = 1,345,336,746.61/50,899.58
6. Step 6: Final answer
   x = 26,431.20