Finding the Fourth Proportional to 103,383, 142,600.50 and 74,654.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,383 : 142,600.50 = 74,654.82 : x
2. Step 2: Convert to fraction form
   103,383/142,600.50 = 74,654.82/x
3. Step 3: Cross multiply
   103,383x = 142,600.50 × 74,654.82
4. Step 4: Simplify right side
   103,383x = 10,645,814,659.41
5. Step 5: Solve for x
   x = 10,645,814,659.41/103,383
6. Step 6: Final answer
   x = 102,974.52