Finding the Fourth Proportional to 37,778.55, 52,138.59 and 20,784.19

Step by Step Solution

1. Step 1: Write the proportion equation
   37,778.55 : 52,138.59 = 20,784.19 : x
2. Step 2: Convert to fraction form
   37,778.55/52,138.59 = 20,784.19/x
3. Step 3: Cross multiply
   37,778.55x = 52,138.59 × 20,784.19
4. Step 4: Simplify right side
   37,778.55x = 1,083,658,345.23
5. Step 5: Solve for x
   x = 1,083,658,345.23/37,778.55
6. Step 6: Final answer
   x = 28,684.49