Finding the Fourth Proportional to 13,109.84, 19,628.10 and 7,084.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.84 : 19,628.10 = 7,084.32 : x
2. Step 2: Convert to fraction form
   13,109.84/19,628.10 = 7,084.32/x
3. Step 3: Cross multiply
   13,109.84x = 19,628.10 × 7,084.32
4. Step 4: Simplify right side
   13,109.84x = 139,051,741.39
5. Step 5: Solve for x
   x = 139,051,741.39/13,109.84
6. Step 6: Final answer
   x = 10,606.67