Finding the Fourth Proportional to 42,993.57, 64,451.88 and 16,692.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.57 : 64,451.88 = 16,692.06 : x
2. Step 2: Convert to fraction form
   42,993.57/64,451.88 = 16,692.06/x
3. Step 3: Cross multiply
   42,993.57x = 64,451.88 × 16,692.06
4. Step 4: Simplify right side
   42,993.57x = 1,075,834,648.07
5. Step 5: Solve for x
   x = 1,075,834,648.07/42,993.57
6. Step 6: Final answer
   x = 25,023.15