Finding the Fourth Proportional to 21,855,106.45, 30,163,994.81 and 13,035,123.01

Step by Step Solution

1. Step 1: Write the proportion equation
   21,855,106.45 : 30,163,994.81 = 13,035,123.01 : x
2. Step 2: Convert to fraction form
   21,855,106.45/30,163,994.81 = 13,035,123.01/x
3. Step 3: Cross multiply
   21,855,106.45x = 30,163,994.81 × 13,035,123.01
4. Step 4: Simplify right side
   21,855,106.45x = 393,191,382,756,175.94
5. Step 5: Solve for x
   x = 393,191,382,756,175.94/21,855,106.45
6. Step 6: Final answer
   x = 17,990,824.42