Finding the Fourth Proportional to 196,645,648.64, 271,330,482.72 and 112,997,617.28

Step by Step Solution

1. Step 1: Write the proportion equation
   196,645,648.64 : 271,330,482.72 = 112,997,617.28 : x
2. Step 2: Convert to fraction form
   196,645,648.64/271,330,482.72 = 112,997,617.28/x
3. Step 3: Cross multiply
   196,645,648.64x = 271,330,482.72 × 112,997,617.28
4. Step 4: Simplify right side
   196,645,648.64x = 30,659,698,042,792,216
5. Step 5: Solve for x
   x = 30,659,698,042,792,216/196,645,648.64
6. Step 6: Final answer
   x = 155,913,432.38