Finding the Fourth Proportional to 126,019.76, 173,907.16 and 69,431.13

Step by Step Solution

1. Step 1: Write the proportion equation
   126,019.76 : 173,907.16 = 69,431.13 : x
2. Step 2: Convert to fraction form
   126,019.76/173,907.16 = 69,431.13/x
3. Step 3: Cross multiply
   126,019.76x = 173,907.16 × 69,431.13
4. Step 4: Simplify right side
   126,019.76x = 12,074,570,460.31
5. Step 5: Solve for x
   x = 12,074,570,460.31/126,019.76
6. Step 6: Final answer
   x = 95,814.90