Finding the Fourth Proportional to 52,788, 72,847.46 and 28,915.53

Step by Step Solution

1. Step 1: Write the proportion equation
   52,788 : 72,847.46 = 28,915.53 : x
2. Step 2: Convert to fraction form
   52,788/72,847.46 = 28,915.53/x
3. Step 3: Cross multiply
   52,788x = 72,847.46 × 28,915.53
4. Step 4: Simplify right side
   52,788x = 2,106,422,915.05
5. Step 5: Solve for x
   x = 2,106,422,915.05/52,788
6. Step 6: Final answer
   x = 39,903.44