Finding the Fourth Proportional to 38,669.82, 53,364.33 and 21,902.82

Step by Step Solution

1. Step 1: Write the proportion equation
   38,669.82 : 53,364.33 = 21,902.82 : x
2. Step 2: Convert to fraction form
   38,669.82/53,364.33 = 21,902.82/x
3. Step 3: Cross multiply
   38,669.82x = 53,364.33 × 21,902.82
4. Step 4: Simplify right side
   38,669.82x = 1,168,829,314.41
5. Step 5: Solve for x
   x = 1,168,829,314.41/38,669.82
6. Step 6: Final answer
   x = 30,225.88