Finding the Fourth Proportional to 38,901, 53,680.17 and 21,899.82

Step by Step Solution

1. Step 1: Write the proportion equation
   38,901 : 53,680.17 = 21,899.82 : x
2. Step 2: Convert to fraction form
   38,901/53,680.17 = 21,899.82/x
3. Step 3: Cross multiply
   38,901x = 53,680.17 × 21,899.82
4. Step 4: Simplify right side
   38,901x = 1,175,586,060.57
5. Step 5: Solve for x
   x = 1,175,586,060.57/38,901
6. Step 6: Final answer
   x = 30,219.94