Finding the Fourth Proportional to 119,172.63, 178,758.75 and 30,426.15

Step by Step Solution

1. Step 1: Write the proportion equation
   119,172.63 : 178,758.75 = 30,426.15 : x
2. Step 2: Convert to fraction form
   119,172.63/178,758.75 = 30,426.15/x
3. Step 3: Cross multiply
   119,172.63x = 178,758.75 × 30,426.15
4. Step 4: Simplify right side
   119,172.63x = 5,438,940,541.31
5. Step 5: Solve for x
   x = 5,438,940,541.31/119,172.63
6. Step 6: Final answer
   x = 45,639.18