Finding the Fourth Proportional to 9,342.30, 14,021.65 and 5,187.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,342.30 : 14,021.65 = 5,187.00 : x
2. Step 2: Convert to fraction form
   9,342.30/14,021.65 = 5,187.00/x
3. Step 3: Cross multiply
   9,342.30x = 14,021.65 × 5,187.00
4. Step 4: Simplify right side
   9,342.30x = 72,730,224.72
5. Step 5: Solve for x
   x = 72,730,224.72/9,342.30
6. Step 6: Final answer
   x = 7,785.05