Finding the Fourth Proportional to 71,870.88, 107,822.73 and 21,958.08

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870.88 : 107,822.73 = 21,958.08 : x
2. Step 2: Convert to fraction form
   71,870.88/107,822.73 = 21,958.08/x
3. Step 3: Cross multiply
   71,870.88x = 107,822.73 × 21,958.08
4. Step 4: Simplify right side
   71,870.88x = 2,367,580,131.16
5. Step 5: Solve for x
   x = 2,367,580,131.16/71,870.88
6. Step 6: Final answer
   x = 32,942.13