Finding the Fourth Proportional to 30,839.65, 42,558.72 and 16,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,839.65 : 42,558.72 = 16,692.50 : x
2. Step 2: Convert to fraction form
   30,839.65/42,558.72 = 16,692.50/x
3. Step 3: Cross multiply
   30,839.65x = 42,558.72 × 16,692.50
4. Step 4: Simplify right side
   30,839.65x = 710,411,238.01
5. Step 5: Solve for x
   x = 710,411,238.01/30,839.65
6. Step 6: Final answer
   x = 23,035.64