Finding the Fourth Proportional to 13,591,109.50, 18,755,725.64 and 7,479,538

Step by Step Solution

1. Step 1: Write the proportion equation
   13,591,109.50 : 18,755,725.64 = 7,479,538 : x
2. Step 2: Convert to fraction form
   13,591,109.50/18,755,725.64 = 7,479,538/x
3. Step 3: Cross multiply
   13,591,109.50x = 18,755,725.64 × 7,479,538
4. Step 4: Simplify right side
   13,591,109.50x = 140,284,162,641,954.33
5. Step 5: Solve for x
   x = 140,284,162,641,954.33/13,591,109.50
6. Step 6: Final answer
   x = 10,321,759.43