Finding the Fourth Proportional to 38,536.08, 57,764.72 and 21,860.89

Step by Step Solution

1. Step 1: Write the proportion equation
   38,536.08 : 57,764.72 = 21,860.89 : x
2. Step 2: Convert to fraction form
   38,536.08/57,764.72 = 21,860.89/x
3. Step 3: Cross multiply
   38,536.08x = 57,764.72 × 21,860.89
4. Step 4: Simplify right side
   38,536.08x = 1,262,788,038.56
5. Step 5: Solve for x
   x = 1,262,788,038.56/38,536.08
6. Step 6: Final answer
   x = 32,768.98