Finding the Fourth Proportional to 13,681,103.52, 18,875,338.56 and 7,879,769.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,681,103.52 : 18,875,338.56 = 7,879,769.12 : x
2. Step 2: Convert to fraction form
   13,681,103.52/18,875,338.56 = 7,879,769.12/x
3. Step 3: Cross multiply
   13,681,103.52x = 18,875,338.56 × 7,879,769.12
4. Step 4: Simplify right side
   13,681,103.52x = 148,733,309,914,633.25
5. Step 5: Solve for x
   x = 148,733,309,914,633.25/13,681,103.52
6. Step 6: Final answer
   x = 10,871,441.01