Finding the Fourth Proportional to 9,777.78, 14,667.30 and 3,933.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,777.78 : 14,667.30 = 3,933.63 : x
2. Step 2: Convert to fraction form
   9,777.78/14,667.30 = 3,933.63/x
3. Step 3: Cross multiply
   9,777.78x = 14,667.30 × 3,933.63
4. Step 4: Simplify right side
   9,777.78x = 57,695,731.30
5. Step 5: Solve for x
   x = 57,695,731.30/9,777.78
6. Step 6: Final answer
   x = 5,900.70