Finding the Fourth Proportional to 39,096.96, 53,953.89 and 21,191.94

Step by Step Solution

1. Step 1: Write the proportion equation
   39,096.96 : 53,953.89 = 21,191.94 : x
2. Step 2: Convert to fraction form
   39,096.96/53,953.89 = 21,191.94/x
3. Step 3: Cross multiply
   39,096.96x = 53,953.89 × 21,191.94
4. Step 4: Simplify right side
   39,096.96x = 1,143,387,599.65
5. Step 5: Solve for x
   x = 1,143,387,599.65/39,096.96
6. Step 6: Final answer
   x = 29,244.92