Finding the Fourth Proportional to 10,985.25, 16,475.40 and 5,056.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.25 : 16,475.40 = 5,056.45 : x
2. Step 2: Convert to fraction form
   10,985.25/16,475.40 = 5,056.45/x
3. Step 3: Cross multiply
   10,985.25x = 16,475.40 × 5,056.45
4. Step 4: Simplify right side
   10,985.25x = 83,307,036.33
5. Step 5: Solve for x
   x = 83,307,036.33/10,985.25
6. Step 6: Final answer
   x = 7,583.54