Finding the Fourth Proportional to 103,372.38, 142,669.32 and 63,109.49

Step by Step Solution

1. Step 1: Write the proportion equation
   103,372.38 : 142,669.32 = 63,109.49 : x
2. Step 2: Convert to fraction form
   103,372.38/142,669.32 = 63,109.49/x
3. Step 3: Cross multiply
   103,372.38x = 142,669.32 × 63,109.49
4. Step 4: Simplify right side
   103,372.38x = 9,003,786,994.95
5. Step 5: Solve for x
   x = 9,003,786,994.95/103,372.38
6. Step 6: Final answer
   x = 87,100.51