Finding the Fourth Proportional to 35,782.30, 53,729.61 and 30,307.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,782.30 : 53,729.61 = 30,307.42 : x
2. Step 2: Convert to fraction form
   35,782.30/53,729.61 = 30,307.42/x
3. Step 3: Cross multiply
   35,782.30x = 53,729.61 × 30,307.42
4. Step 4: Simplify right side
   35,782.30x = 1,628,405,856.71
5. Step 5: Solve for x
   x = 1,628,405,856.71/35,782.30
6. Step 6: Final answer
   x = 45,508.70