Finding the Fourth Proportional to 52,806.99, 72,870.85 and 30,145.08

Step by Step Solution

1. Step 1: Write the proportion equation
   52,806.99 : 72,870.85 = 30,145.08 : x
2. Step 2: Convert to fraction form
   52,806.99/72,870.85 = 30,145.08/x
3. Step 3: Cross multiply
   52,806.99x = 72,870.85 × 30,145.08
4. Step 4: Simplify right side
   52,806.99x = 2,196,697,913.87
5. Step 5: Solve for x
   x = 2,196,697,913.87/52,806.99
6. Step 6: Final answer
   x = 41,598.62