Finding the Fourth Proportional to 13,943,700.72, 20,851,340.72 and 13,263,456.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,943,700.72 : 20,851,340.72 = 13,263,456.24 : x
2. Step 2: Convert to fraction form
   13,943,700.72/20,851,340.72 = 13,263,456.24/x
3. Step 3: Cross multiply
   13,943,700.72x = 20,851,340.72 × 13,263,456.24
4. Step 4: Simplify right side
   13,943,700.72x = 276,560,845,185,050.09
5. Step 5: Solve for x
   x = 276,560,845,185,050.09/13,943,700.72
6. Step 6: Final answer
   x = 19,834,106.51