Finding the Fourth Proportional to 30,946.47, 46,429.83 and 9,889.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,946.47 : 46,429.83 = 9,889.98 : x
2. Step 2: Convert to fraction form
   30,946.47/46,429.83 = 9,889.98/x
3. Step 3: Cross multiply
   30,946.47x = 46,429.83 × 9,889.98
4. Step 4: Simplify right side
   30,946.47x = 459,190,090.10
5. Step 5: Solve for x
   x = 459,190,090.10/30,946.47
6. Step 6: Final answer
   x = 14,838.21