Finding the Fourth Proportional to 338,969.18, 508,483.32 and 111,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,969.18 : 508,483.32 = 111,196.50 : x
2. Step 2: Convert to fraction form
   338,969.18/508,483.32 = 111,196.50/x
3. Step 3: Cross multiply
   338,969.18x = 508,483.32 × 111,196.50
4. Step 4: Simplify right side
   338,969.18x = 56,541,565,492.38
5. Step 5: Solve for x
   x = 56,541,565,492.38/338,969.18
6. Step 6: Final answer
   x = 166,804.45