Finding the Fourth Proportional to 25,418,715.21, 35,078,061.83 and 13,816,305.99

Step by Step Solution

1. Step 1: Write the proportion equation
   25,418,715.21 : 35,078,061.83 = 13,816,305.99 : x
2. Step 2: Convert to fraction form
   25,418,715.21/35,078,061.83 = 13,816,305.99/x
3. Step 3: Cross multiply
   25,418,715.21x = 35,078,061.83 × 13,816,305.99
4. Step 4: Simplify right side
   25,418,715.21x = 484,649,235,779,419.38
5. Step 5: Solve for x
   x = 484,649,235,779,419.38/25,418,715.21
6. Step 6: Final answer
   x = 19,066,629.91