Finding the Fourth Proportional to 126,945.17, 175,082.18 and 111,598.90

Step by Step Solution

1. Step 1: Write the proportion equation
   126,945.17 : 175,082.18 = 111,598.90 : x
2. Step 2: Convert to fraction form
   126,945.17/175,082.18 = 111,598.90/x
3. Step 3: Cross multiply
   126,945.17x = 175,082.18 × 111,598.90
4. Step 4: Simplify right side
   126,945.17x = 19,538,978,697.60
5. Step 5: Solve for x
   x = 19,538,978,697.60/126,945.17
6. Step 6: Final answer
   x = 153,916.68