Finding the Fourth Proportional to 147,068.30, 202,958.79 and 83,408.78

Step by Step Solution

1. Step 1: Write the proportion equation
   147,068.30 : 202,958.79 = 83,408.78 : x
2. Step 2: Convert to fraction form
   147,068.30/202,958.79 = 83,408.78/x
3. Step 3: Cross multiply
   147,068.30x = 202,958.79 × 83,408.78
4. Step 4: Simplify right side
   147,068.30x = 16,928,545,064.18
5. Step 5: Solve for x
   x = 16,928,545,064.18/147,068.30
6. Step 6: Final answer
   x = 115,106.69