Finding the Fourth Proportional to 102,920.90, 154,392.69 and 32,784.08

Step by Step Solution

1. Step 1: Write the proportion equation
   102,920.90 : 154,392.69 = 32,784.08 : x
2. Step 2: Convert to fraction form
   102,920.90/154,392.69 = 32,784.08/x
3. Step 3: Cross multiply
   102,920.90x = 154,392.69 × 32,784.08
4. Step 4: Simplify right side
   102,920.90x = 5,061,622,300.38
5. Step 5: Solve for x
   x = 5,061,622,300.38/102,920.90
6. Step 6: Final answer
   x = 49,179.73