Finding the Fourth Proportional to 71,435.39, 107,118.45 and 21,506.18

Step by Step Solution

1. Step 1: Write the proportion equation
   71,435.39 : 107,118.45 = 21,506.18 : x
2. Step 2: Convert to fraction form
   71,435.39/107,118.45 = 21,506.18/x
3. Step 3: Cross multiply
   71,435.39x = 107,118.45 × 21,506.18
4. Step 4: Simplify right side
   71,435.39x = 2,303,708,667.02
5. Step 5: Solve for x
   x = 2,303,708,667.02/71,435.39
6. Step 6: Final answer
   x = 32,248.84