Finding the Fourth Proportional to 168,978.51, 253,795.82 and 124,429.32

Step by Step Solution

1. Step 1: Write the proportion equation
   168,978.51 : 253,795.82 = 124,429.32 : x
2. Step 2: Convert to fraction form
   168,978.51/253,795.82 = 124,429.32/x
3. Step 3: Cross multiply
   168,978.51x = 253,795.82 × 124,429.32
4. Step 4: Simplify right side
   168,978.51x = 31,579,640,679.30
5. Step 5: Solve for x
   x = 31,579,640,679.30/168,978.51
6. Step 6: Final answer
   x = 186,885.54