Finding the Fourth Proportional to 10,468.47, 15,698.79 and 4,621.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,468.47 : 15,698.79 = 4,621.89 : x
2. Step 2: Convert to fraction form
   10,468.47/15,698.79 = 4,621.89/x
3. Step 3: Cross multiply
   10,468.47x = 15,698.79 × 4,621.89
4. Step 4: Simplify right side
   10,468.47x = 72,558,080.51
5. Step 5: Solve for x
   x = 72,558,080.51/10,468.47
6. Step 6: Final answer
   x = 6,931.11