Finding the Fourth Proportional to 202,499.54, 279,443.76 and 111,854.06

Step by Step Solution

1. Step 1: Write the proportion equation
   202,499.54 : 279,443.76 = 111,854.06 : x
2. Step 2: Convert to fraction form
   202,499.54/279,443.76 = 111,854.06/x
3. Step 3: Cross multiply
   202,499.54x = 279,443.76 × 111,854.06
4. Step 4: Simplify right side
   202,499.54x = 31,256,919,097.67
5. Step 5: Solve for x
   x = 31,256,919,097.67/202,499.54
6. Step 6: Final answer
   x = 154,355.51