Finding the Fourth Proportional to 47,345.21, 65,308.84 and 30,343.42

Step by Step Solution

1. Step 1: Write the proportion equation
   47,345.21 : 65,308.84 = 30,343.42 : x
2. Step 2: Convert to fraction form
   47,345.21/65,308.84 = 30,343.42/x
3. Step 3: Cross multiply
   47,345.21x = 65,308.84 × 30,343.42
4. Step 4: Simplify right side
   47,345.21x = 1,981,693,561.83
5. Step 5: Solve for x
   x = 1,981,693,561.83/47,345.21
6. Step 6: Final answer
   x = 41,856.26