Finding the Fourth Proportional to 38,674.58, 57,897 and 21,091.10

Step by Step Solution

1. Step 1: Write the proportion equation
   38,674.58 : 57,897 = 21,091.10 : x
2. Step 2: Convert to fraction form
   38,674.58/57,897 = 21,091.10/x
3. Step 3: Cross multiply
   38,674.58x = 57,897 × 21,091.10
4. Step 4: Simplify right side
   38,674.58x = 1,221,111,127.22
5. Step 5: Solve for x
   x = 1,221,111,127.22/38,674.58
6. Step 6: Final answer
   x = 31,574.00