Finding the Fourth Proportional to 34,671.33, 47,830.37 and 21,918.69

Step by Step Solution

1. Step 1: Write the proportion equation
   34,671.33 : 47,830.37 = 21,918.69 : x
2. Step 2: Convert to fraction form
   34,671.33/47,830.37 = 21,918.69/x
3. Step 3: Cross multiply
   34,671.33x = 47,830.37 × 21,918.69
4. Step 4: Simplify right side
   34,671.33x = 1,048,378,943.02
5. Step 5: Solve for x
   x = 1,048,378,943.02/34,671.33
6. Step 6: Final answer
   x = 30,237.63