Finding the Fourth Proportional to 127,941.12, 191,742.72 and 61,401.60

Step by Step Solution

1. Step 1: Write the proportion equation
   127,941.12 : 191,742.72 = 61,401.60 : x
2. Step 2: Convert to fraction form
   127,941.12/191,742.72 = 61,401.60/x
3. Step 3: Cross multiply
   127,941.12x = 191,742.72 × 61,401.60
4. Step 4: Simplify right side
   127,941.12x = 11,773,309,796.35
5. Step 5: Solve for x
   x = 11,773,309,796.35/127,941.12
6. Step 6: Final answer
   x = 92,021.31