Finding the Fourth Proportional to 119,111.18, 178,639.48 and 71,093.34

Step by Step Solution

1. Step 1: Write the proportion equation
   119,111.18 : 178,639.48 = 71,093.34 : x
2. Step 2: Convert to fraction form
   119,111.18/178,639.48 = 71,093.34/x
3. Step 3: Cross multiply
   119,111.18x = 178,639.48 × 71,093.34
4. Step 4: Simplify right side
   119,111.18x = 12,700,077,289.06
5. Step 5: Solve for x
   x = 12,700,077,289.06/119,111.18
6. Step 6: Final answer
   x = 106,623.72