Finding the Fourth Proportional to 42,394.22, 63,592.69 and 21,322.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,394.22 : 63,592.69 = 21,322.76 : x
2. Step 2: Convert to fraction form
   42,394.22/63,592.69 = 21,322.76/x
3. Step 3: Cross multiply
   42,394.22x = 63,592.69 × 21,322.76
4. Step 4: Simplify right side
   42,394.22x = 1,355,971,560.01
5. Step 5: Solve for x
   x = 1,355,971,560.01/42,394.22
6. Step 6: Final answer
   x = 31,984.82