Finding the Fourth Proportional to 10,985.90, 16,461.02 and 7,030.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.90 : 16,461.02 = 7,030.26 : x
2. Step 2: Convert to fraction form
   10,985.90/16,461.02 = 7,030.26/x
3. Step 3: Cross multiply
   10,985.90x = 16,461.02 × 7,030.26
4. Step 4: Simplify right side
   10,985.90x = 115,725,268.04
5. Step 5: Solve for x
   x = 115,725,268.04/10,985.90
6. Step 6: Final answer
   x = 10,533.99