Finding the Fourth Proportional to 9,835.51, 13,572.83 and 5,359.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,835.51 : 13,572.83 = 5,359.30 : x
2. Step 2: Convert to fraction form
   9,835.51/13,572.83 = 5,359.30/x
3. Step 3: Cross multiply
   9,835.51x = 13,572.83 × 5,359.30
4. Step 4: Simplify right side
   9,835.51x = 72,740,807.09
5. Step 5: Solve for x
   x = 72,740,807.09/9,835.51
6. Step 6: Final answer
   x = 7,395.74