Finding the Fourth Proportional to 72,547.88, 108,822.51 and 21,947.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,547.88 : 108,822.51 = 21,947.31 : x
2. Step 2: Convert to fraction form
   72,547.88/108,822.51 = 21,947.31/x
3. Step 3: Cross multiply
   72,547.88x = 108,822.51 × 21,947.31
4. Step 4: Simplify right side
   72,547.88x = 2,388,361,361.95
5. Step 5: Solve for x
   x = 2,388,361,361.95/72,547.88
6. Step 6: Final answer
   x = 32,921.18