Finding the Fourth Proportional to 37,011.22, 51,074.20 and 21,100.81

Step by Step Solution

1. Step 1: Write the proportion equation
   37,011.22 : 51,074.20 = 21,100.81 : x
2. Step 2: Convert to fraction form
   37,011.22/51,074.20 = 21,100.81/x
3. Step 3: Cross multiply
   37,011.22x = 51,074.20 × 21,100.81
4. Step 4: Simplify right side
   37,011.22x = 1,077,706,990.10
5. Step 5: Solve for x
   x = 1,077,706,990.10/37,011.22
6. Step 6: Final answer
   x = 29,118.39