Finding the Fourth Proportional to 21,839,101.60, 32,785,609.20 and 13,752,061.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,839,101.60 : 32,785,609.20 = 13,752,061.60 : x
2. Step 2: Convert to fraction form
   21,839,101.60/32,785,609.20 = 13,752,061.60/x
3. Step 3: Cross multiply
   21,839,101.60x = 32,785,609.20 × 13,752,061.60
4. Step 4: Simplify right side
   21,839,101.60x = 450,869,717,311,926.69
5. Step 5: Solve for x
   x = 450,869,717,311,926.69/21,839,101.60
6. Step 6: Final answer
   x = 20,645,067.07