Finding the Fourth Proportional to 9,830.48, 13,585.36 and 8,736.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,830.48 : 13,585.36 = 8,736.98 : x
2. Step 2: Convert to fraction form
   9,830.48/13,585.36 = 8,736.98/x
3. Step 3: Cross multiply
   9,830.48x = 13,585.36 × 8,736.98
4. Step 4: Simplify right side
   9,830.48x = 118,695,018.61
5. Step 5: Solve for x
   x = 118,695,018.61/9,830.48
6. Step 6: Final answer
   x = 12,074.18