Finding the Fourth Proportional to 190,602.32, 263,062.69 and 105,746.72

Step by Step Solution

1. Step 1: Write the proportion equation
   190,602.32 : 263,062.69 = 105,746.72 : x
2. Step 2: Convert to fraction form
   190,602.32/263,062.69 = 105,746.72/x
3. Step 3: Cross multiply
   190,602.32x = 263,062.69 × 105,746.72
4. Step 4: Simplify right side
   190,602.32x = 27,818,015,042.20
5. Step 5: Solve for x
   x = 27,818,015,042.20/190,602.32
6. Step 6: Final answer
   x = 145,947.94