Finding the Fourth Proportional to 37,289.31, 51,459.35 and 20,522.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,289.31 : 51,459.35 = 20,522.31 : x
2. Step 2: Convert to fraction form
   37,289.31/51,459.35 = 20,522.31/x
3. Step 3: Cross multiply
   37,289.31x = 51,459.35 × 20,522.31
4. Step 4: Simplify right side
   37,289.31x = 1,056,064,733.10
5. Step 5: Solve for x
   x = 1,056,064,733.10/37,289.31
6. Step 6: Final answer
   x = 28,320.84