Finding the Fourth Proportional to 37,083.92, 51,173.61 and 21,978.02

Step by Step Solution

1. Step 1: Write the proportion equation
   37,083.92 : 51,173.61 = 21,978.02 : x
2. Step 2: Convert to fraction form
   37,083.92/51,173.61 = 21,978.02/x
3. Step 3: Cross multiply
   37,083.92x = 51,173.61 × 21,978.02
4. Step 4: Simplify right side
   37,083.92x = 1,124,694,368.18
5. Step 5: Solve for x
   x = 1,124,694,368.18/37,083.92
6. Step 6: Final answer
   x = 30,328.36