Finding the Fourth Proportional to 71,678.07, 98,769.95 and 55,446.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,678.07 : 98,769.95 = 55,446.82 : x
2. Step 2: Convert to fraction form
   71,678.07/98,769.95 = 55,446.82/x
3. Step 3: Cross multiply
   71,678.07x = 98,769.95 × 55,446.82
4. Step 4: Simplify right side
   71,678.07x = 5,476,479,322.83
5. Step 5: Solve for x
   x = 5,476,479,322.83/71,678.07
6. Step 6: Final answer
   x = 76,403.83