Finding the Fourth Proportional to 52,789, 72,848.84 and 28,916.53

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789 : 72,848.84 = 28,916.53 : x
2. Step 2: Convert to fraction form
   52,789/72,848.84 = 28,916.53/x
3. Step 3: Cross multiply
   52,789x = 72,848.84 × 28,916.53
4. Step 4: Simplify right side
   52,789x = 2,106,535,667.33
5. Step 5: Solve for x
   x = 2,106,535,667.33/52,789
6. Step 6: Final answer
   x = 39,904.82