Finding the Fourth Proportional to 10,985.31, 16,547.15 and 10,004.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.31 : 16,547.15 = 10,004.36 : x
2. Step 2: Convert to fraction form
   10,985.31/16,547.15 = 10,004.36/x
3. Step 3: Cross multiply
   10,985.31x = 16,547.15 × 10,004.36
4. Step 4: Simplify right side
   10,985.31x = 165,543,512.82
5. Step 5: Solve for x
   x = 165,543,512.82/10,985.31
6. Step 6: Final answer
   x = 15,069.53