Finding the Fourth Proportional to 147,066.30, 202,956.03 and 83,406.78

Step by Step Solution

1. Step 1: Write the proportion equation
   147,066.30 : 202,956.03 = 83,406.78 : x
2. Step 2: Convert to fraction form
   147,066.30/202,956.03 = 83,406.78/x
3. Step 3: Cross multiply
   147,066.30x = 202,956.03 × 83,406.78
4. Step 4: Simplify right side
   147,066.30x = 16,927,908,943.88
5. Step 5: Solve for x
   x = 16,927,908,943.88/147,066.30
6. Step 6: Final answer
   x = 115,103.93