Finding the Fourth Proportional to 13,109.94, 19,678.95 and 7,271.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.94 : 19,678.95 = 7,271.46 : x
2. Step 2: Convert to fraction form
   13,109.94/19,678.95 = 7,271.46/x
3. Step 3: Cross multiply
   13,109.94x = 19,678.95 × 7,271.46
4. Step 4: Simplify right side
   13,109.94x = 143,094,697.77
5. Step 5: Solve for x
   x = 143,094,697.77/13,109.94
6. Step 6: Final answer
   x = 10,914.98