Finding the Fourth Proportional to 109,577.76, 151,222.72 and 67,138.64

Step by Step Solution

1. Step 1: Write the proportion equation
   109,577.76 : 151,222.72 = 67,138.64 : x
2. Step 2: Convert to fraction form
   109,577.76/151,222.72 = 67,138.64/x
3. Step 3: Cross multiply
   109,577.76x = 151,222.72 × 67,138.64
4. Step 4: Simplify right side
   109,577.76x = 10,152,887,757.90
5. Step 5: Solve for x
   x = 10,152,887,757.90/109,577.76
6. Step 6: Final answer
   x = 92,654.64