Finding the Fourth Proportional to 60,747.89, 91,036.21 and 28,692.80

Step by Step Solution

1. Step 1: Write the proportion equation
   60,747.89 : 91,036.21 = 28,692.80 : x
2. Step 2: Convert to fraction form
   60,747.89/91,036.21 = 28,692.80/x
3. Step 3: Cross multiply
   60,747.89x = 91,036.21 × 28,692.80
4. Step 4: Simplify right side
   60,747.89x = 2,612,083,239.37
5. Step 5: Solve for x
   x = 2,612,083,239.37/60,747.89
6. Step 6: Final answer
   x = 42,998.75