Finding the Fourth Proportional to 123,461.42, 170,390.56 and 69,749.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,461.42 : 170,390.56 = 69,749.88 : x
2. Step 2: Convert to fraction form
   123,461.42/170,390.56 = 69,749.88/x
3. Step 3: Cross multiply
   123,461.42x = 170,390.56 × 69,749.88
4. Step 4: Simplify right side
   123,461.42x = 11,884,721,113.13
5. Step 5: Solve for x
   x = 11,884,721,113.13/123,461.42
6. Step 6: Final answer
   x = 96,262.63