Finding the Fourth Proportional to 23,194,908.91, 32,007,107.58 and 13,405,987.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,194,908.91 : 32,007,107.58 = 13,405,987.12 : x
2. Step 2: Convert to fraction form
   23,194,908.91/32,007,107.58 = 13,405,987.12/x
3. Step 3: Cross multiply
   23,194,908.91x = 32,007,107.58 × 13,405,987.12
4. Step 4: Simplify right side
   23,194,908.91x = 429,086,871,985,661.50
5. Step 5: Solve for x
   x = 429,086,871,985,661.50/23,194,908.91
6. Step 6: Final answer
   x = 18,499,183.32