Finding the Fourth Proportional to 30,421.77, 42,196.82 and 29,612.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,421.77 : 42,196.82 = 29,612.58 : x
2. Step 2: Convert to fraction form
   30,421.77/42,196.82 = 29,612.58/x
3. Step 3: Cross multiply
   30,421.77x = 42,196.82 × 29,612.58
4. Step 4: Simplify right side
   30,421.77x = 1,249,556,708.00
5. Step 5: Solve for x
   x = 1,249,556,708.00/30,421.77
6. Step 6: Final answer
   x = 41,074.42