Finding the Fourth Proportional to 338,574.72, 508,095.78 and 116,958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   338,574.72 : 508,095.78 = 116,958.72 : x
2. Step 2: Convert to fraction form
   338,574.72/508,095.78 = 116,958.72/x
3. Step 3: Cross multiply
   338,574.72x = 508,095.78 × 116,958.72
4. Step 4: Simplify right side
   338,574.72x = 59,426,232,066.20
5. Step 5: Solve for x
   x = 59,426,232,066.20/338,574.72
6. Step 6: Final answer
   x = 175,518.81