Finding the Fourth Proportional to 9,710.78, 14,564.59 and 3,136.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,710.78 : 14,564.59 = 3,136.99 : x
2. Step 2: Convert to fraction form
   9,710.78/14,564.59 = 3,136.99/x
3. Step 3: Cross multiply
   9,710.78x = 14,564.59 × 3,136.99
4. Step 4: Simplify right side
   9,710.78x = 45,688,973.18
5. Step 5: Solve for x
   x = 45,688,973.18/9,710.78
6. Step 6: Final answer
   x = 4,704.98