Finding the Fourth Proportional to 45,435.96, 68,164.72 and 14,271.21

Step by Step Solution

1. Step 1: Write the proportion equation
   45,435.96 : 68,164.72 = 14,271.21 : x
2. Step 2: Convert to fraction form
   45,435.96/68,164.72 = 14,271.21/x
3. Step 3: Cross multiply
   45,435.96x = 68,164.72 × 14,271.21
4. Step 4: Simplify right side
   45,435.96x = 972,793,033.71
5. Step 5: Solve for x
   x = 972,793,033.71/45,435.96
6. Step 6: Final answer
   x = 21,410.20