Finding the Fourth Proportional to 21,662,465.81, 29,897,496.56 and 13,825,359.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,662,465.81 : 29,897,496.56 = 13,825,359.41 : x
2. Step 2: Convert to fraction form
   21,662,465.81/29,897,496.56 = 13,825,359.41/x
3. Step 3: Cross multiply
   21,662,465.81x = 29,897,496.56 × 13,825,359.41
4. Step 4: Simplify right side
   21,662,465.81x = 413,343,635,286,314.50
5. Step 5: Solve for x
   x = 413,343,635,286,314.50/21,662,465.81
6. Step 6: Final answer
   x = 19,081,098.11