Finding the Fourth Proportional to 254,300.40, 381,669.30 and 112,364.10

Step by Step Solution

1. Step 1: Write the proportion equation
   254,300.40 : 381,669.30 = 112,364.10 : x
2. Step 2: Convert to fraction form
   254,300.40/381,669.30 = 112,364.10/x
3. Step 3: Cross multiply
   254,300.40x = 381,669.30 × 112,364.10
4. Step 4: Simplify right side
   254,300.40x = 42,885,927,392.13
5. Step 5: Solve for x
   x = 42,885,927,392.13/254,300.40
6. Step 6: Final answer
   x = 168,642.78