Finding the Fourth Proportional to 126,460.16, 174,513.28 and 69,870.72

Step by Step Solution

1. Step 1: Write the proportion equation
   126,460.16 : 174,513.28 = 69,870.72 : x
2. Step 2: Convert to fraction form
   126,460.16/174,513.28 = 69,870.72/x
3. Step 3: Cross multiply
   126,460.16x = 174,513.28 × 69,870.72
4. Step 4: Simplify right side
   126,460.16x = 12,193,368,523.16
5. Step 5: Solve for x
   x = 12,193,368,523.16/126,460.16
6. Step 6: Final answer
   x = 96,420.63