Finding the Fourth Proportional to 57,587.31, 79,443.32 and 33,699.20

Step by Step Solution

1. Step 1: Write the proportion equation
   57,587.31 : 79,443.32 = 33,699.20 : x
2. Step 2: Convert to fraction form
   57,587.31/79,443.32 = 33,699.20/x
3. Step 3: Cross multiply
   57,587.31x = 79,443.32 × 33,699.20
4. Step 4: Simplify right side
   57,587.31x = 2,677,175,763.63
5. Step 5: Solve for x
   x = 2,677,175,763.63/57,587.31
6. Step 6: Final answer
   x = 46,488.99