Finding the Fourth Proportional to 37,290.18, 51,458.88 and 20,522.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,290.18 : 51,458.88 = 20,522.10 : x
2. Step 2: Convert to fraction form
   37,290.18/51,458.88 = 20,522.10/x
3. Step 3: Cross multiply
   37,290.18x = 51,458.88 × 20,522.10
4. Step 4: Simplify right side
   37,290.18x = 1,056,044,281.25
5. Step 5: Solve for x
   x = 1,056,044,281.25/37,290.18
6. Step 6: Final answer
   x = 28,319.63