Finding the Fourth Proportional to 102,897.51, 154,355.49 and 28,018.05

Step by Step Solution

1. Step 1: Write the proportion equation
   102,897.51 : 154,355.49 = 28,018.05 : x
2. Step 2: Convert to fraction form
   102,897.51/154,355.49 = 28,018.05/x
3. Step 3: Cross multiply
   102,897.51x = 154,355.49 × 28,018.05
4. Step 4: Simplify right side
   102,897.51x = 4,324,739,836.59
5. Step 5: Solve for x
   x = 4,324,739,836.59/102,897.51
6. Step 6: Final answer
   x = 42,029.59