Finding the Fourth Proportional to 22,419.12, 30,938.59 and 12,347.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,419.12 : 30,938.59 = 12,347.91 : x
2. Step 2: Convert to fraction form
   22,419.12/30,938.59 = 12,347.91/x
3. Step 3: Cross multiply
   22,419.12x = 30,938.59 × 12,347.91
4. Step 4: Simplify right side
   22,419.12x = 382,026,899.83
5. Step 5: Solve for x
   x = 382,026,899.83/22,419.12
6. Step 6: Final answer
   x = 17,040.23