Finding the Fourth Proportional to 9,887.61, 14,832.71 and 3,651.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887.61 : 14,832.71 = 3,651.99 : x
2. Step 2: Convert to fraction form
   9,887.61/14,832.71 = 3,651.99/x
3. Step 3: Cross multiply
   9,887.61x = 14,832.71 × 3,651.99
4. Step 4: Simplify right side
   9,887.61x = 54,168,890.33
5. Step 5: Solve for x
   x = 54,168,890.33/9,887.61
6. Step 6: Final answer
   x = 5,478.46