Finding the Fourth Proportional to 38,671.34, 53,366.55 and 21,904.34

Step by Step Solution

1. Step 1: Write the proportion equation
   38,671.34 : 53,366.55 = 21,904.34 : x
2. Step 2: Convert to fraction form
   38,671.34/53,366.55 = 21,904.34/x
3. Step 3: Cross multiply
   38,671.34x = 53,366.55 × 21,904.34
4. Step 4: Simplify right side
   38,671.34x = 1,168,959,055.83
5. Step 5: Solve for x
   x = 1,168,959,055.83/38,671.34
6. Step 6: Final answer
   x = 30,228.05