Finding the Fourth Proportional to 190,641.58, 263,116.89 and 105,785.98

Step by Step Solution

1. Step 1: Write the proportion equation
   190,641.58 : 263,116.89 = 105,785.98 : x
2. Step 2: Convert to fraction form
   190,641.58/263,116.89 = 105,785.98/x
3. Step 3: Cross multiply
   190,641.58x = 263,116.89 × 105,785.98
4. Step 4: Simplify right side
   190,641.58x = 27,834,078,063.20
5. Step 5: Solve for x
   x = 27,834,078,063.20/190,641.58
6. Step 6: Final answer
   x = 146,002.14