Finding the Fourth Proportional to 37,111.81, 51,214.86 and 21,196.29

Step by Step Solution

1. Step 1: Write the proportion equation
   37,111.81 : 51,214.86 = 21,196.29 : x
2. Step 2: Convert to fraction form
   37,111.81/51,214.86 = 21,196.29/x
3. Step 3: Cross multiply
   37,111.81x = 51,214.86 × 21,196.29
4. Step 4: Simplify right side
   37,111.81x = 1,085,564,832.81
5. Step 5: Solve for x
   x = 1,085,564,832.81/37,111.81
6. Step 6: Final answer
   x = 29,251.20