Finding the Fourth Proportional to 37,758.72, 52,106.56 and 21,842.80

Step by Step Solution

1. Step 1: Write the proportion equation
   37,758.72 : 52,106.56 = 21,842.80 : x
2. Step 2: Convert to fraction form
   37,758.72/52,106.56 = 21,842.80/x
3. Step 3: Cross multiply
   37,758.72x = 52,106.56 × 21,842.80
4. Step 4: Simplify right side
   37,758.72x = 1,138,153,168.77
5. Step 5: Solve for x
   x = 1,138,153,168.77/37,758.72
6. Step 6: Final answer
   x = 30,142.79