Finding the Fourth Proportional to 51,003.68, 76,516.52 and 21,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   51,003.68 : 76,516.52 = 21,404.52 : x
2. Step 2: Convert to fraction form
   51,003.68/76,516.52 = 21,404.52/x
3. Step 3: Cross multiply
   51,003.68x = 76,516.52 × 21,404.52
4. Step 4: Simplify right side
   51,003.68x = 1,637,799,275.65
5. Step 5: Solve for x
   x = 1,637,799,275.65/51,003.68
6. Step 6: Final answer
   x = 32,111.40