Finding the Fourth Proportional to 13,401,033.58, 19,949,989.91 and 13,321,317.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401,033.58 : 19,949,989.91 = 13,321,317.16 : x
2. Step 2: Convert to fraction form
   13,401,033.58/19,949,989.91 = 13,321,317.16/x
3. Step 3: Cross multiply
   13,401,033.58x = 19,949,989.91 × 13,321,317.16
4. Step 4: Simplify right side
   13,401,033.58x = 265,760,142,929,909.88
5. Step 5: Solve for x
   x = 265,760,142,929,909.88/13,401,033.58
6. Step 6: Final answer
   x = 19,831,316.84