Finding the Fourth Proportional to 9,810.50, 13,538.75 and 5,334.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.50 : 13,538.75 = 5,334.55 : x
2. Step 2: Convert to fraction form
   9,810.50/13,538.75 = 5,334.55/x
3. Step 3: Cross multiply
   9,810.50x = 13,538.75 × 5,334.55
4. Step 4: Simplify right side
   9,810.50x = 72,223,118.30
5. Step 5: Solve for x
   x = 72,223,118.30/9,810.50
6. Step 6: Final answer
   x = 7,361.82