Finding the Fourth Proportional to 42,212.75, 63,341.00 and 21,436.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,212.75 : 63,341.00 = 21,436.25 : x
2. Step 2: Convert to fraction form
   42,212.75/63,341.00 = 21,436.25/x
3. Step 3: Cross multiply
   42,212.75x = 63,341.00 × 21,436.25
4. Step 4: Simplify right side
   42,212.75x = 1,357,793,404.07
5. Step 5: Solve for x
   x = 1,357,793,404.07/42,212.75
6. Step 6: Final answer
   x = 32,165.48