Finding the Fourth Proportional to 102,595.34, 141,640.43 and 78,204.83

Step by Step Solution

1. Step 1: Write the proportion equation
   102,595.34 : 141,640.43 = 78,204.83 : x
2. Step 2: Convert to fraction form
   102,595.34/141,640.43 = 78,204.83/x
3. Step 3: Cross multiply
   102,595.34x = 141,640.43 × 78,204.83
4. Step 4: Simplify right side
   102,595.34x = 11,076,964,650.05
5. Step 5: Solve for x
   x = 11,076,964,650.05/102,595.34
6. Step 6: Final answer
   x = 107,967.53