Finding the Fourth Proportional to 30,566.10, 42,821.70 and 30,566.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,566.10 : 42,821.70 = 30,566.10 : x
2. Step 2: Convert to fraction form
   30,566.10/42,821.70 = 30,566.10/x
3. Step 3: Cross multiply
   30,566.10x = 42,821.70 × 30,566.10
4. Step 4: Simplify right side
   30,566.10x = 1,308,892,364.37
5. Step 5: Solve for x
   x = 1,308,892,364.37/30,566.10
6. Step 6: Final answer
   x = 42,821.70