Finding the Fourth Proportional to 140,572.32, 193,994.46 and 76,910.15

Step by Step Solution

1. Step 1: Write the proportion equation
   140,572.32 : 193,994.46 = 76,910.15 : x
2. Step 2: Convert to fraction form
   140,572.32/193,994.46 = 76,910.15/x
3. Step 3: Cross multiply
   140,572.32x = 193,994.46 × 76,910.15
4. Step 4: Simplify right side
   140,572.32x = 14,920,142,047.80
5. Step 5: Solve for x
   x = 14,920,142,047.80/140,572.32
6. Step 6: Final answer
   x = 106,138.55