Finding the Fourth Proportional to 382,665.71, 574,081.60 and 116,419.30

Step by Step Solution

1. Step 1: Write the proportion equation
   382,665.71 : 574,081.60 = 116,419.30 : x
2. Step 2: Convert to fraction form
   382,665.71/574,081.60 = 116,419.30/x
3. Step 3: Cross multiply
   382,665.71x = 574,081.60 × 116,419.30
4. Step 4: Simplify right side
   382,665.71x = 66,834,178,014.88
5. Step 5: Solve for x
   x = 66,834,178,014.88/382,665.71
6. Step 6: Final answer
   x = 174,654.21