Finding the Fourth Proportional to 52,789.01, 72,848.87 and 28,915.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789.01 : 72,848.87 = 28,915.78 : x
2. Step 2: Convert to fraction form
   52,789.01/72,848.87 = 28,915.78/x
3. Step 3: Cross multiply
   52,789.01x = 72,848.87 × 28,915.78
4. Step 4: Simplify right side
   52,789.01x = 2,106,481,611.61
5. Step 5: Solve for x
   x = 2,106,481,611.61/52,789.01
6. Step 6: Final answer
   x = 39,903.79