Finding the Fourth Proportional to 37,779.84, 52,136.88 and 20,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,779.84 : 52,136.88 = 20,784.72 : x
2. Step 2: Convert to fraction form
   37,779.84/52,136.88 = 20,784.72/x
3. Step 3: Cross multiply
   37,779.84x = 52,136.88 × 20,784.72
4. Step 4: Simplify right side
   37,779.84x = 1,083,650,452.47
5. Step 5: Solve for x
   x = 1,083,650,452.47/37,779.84
6. Step 6: Final answer
   x = 28,683.30