Finding the Fourth Proportional to 202,602.40, 279,608.15 and 111,976.06

Step by Step Solution

1. Step 1: Write the proportion equation
   202,602.40 : 279,608.15 = 111,976.06 : x
2. Step 2: Convert to fraction form
   202,602.40/279,608.15 = 111,976.06/x
3. Step 3: Cross multiply
   202,602.40x = 279,608.15 × 111,976.06
4. Step 4: Simplify right side
   202,602.40x = 31,309,418,980.89
5. Step 5: Solve for x
   x = 31,309,418,980.89/202,602.40
6. Step 6: Final answer
   x = 154,536.27