Finding the Fourth Proportional to 102,196.50, 153,303.39 and 28,324.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,196.50 : 153,303.39 = 28,324.50 : x
2. Step 2: Convert to fraction form
   102,196.50/153,303.39 = 28,324.50/x
3. Step 3: Cross multiply
   102,196.50x = 153,303.39 × 28,324.50
4. Step 4: Simplify right side
   102,196.50x = 4,342,241,870.06
5. Step 5: Solve for x
   x = 4,342,241,870.06/102,196.50
6. Step 6: Final answer
   x = 42,489.14