Finding the Fourth Proportional to 61,668.04, 91,960.58 and 61,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,668.04 : 91,960.58 = 61,106.72 : x
2. Step 2: Convert to fraction form
   61,668.04/91,960.58 = 61,106.72/x
3. Step 3: Cross multiply
   61,668.04x = 91,960.58 × 61,106.72
4. Step 4: Simplify right side
   61,668.04x = 5,619,409,413.10
5. Step 5: Solve for x
   x = 5,619,409,413.10/61,668.04
6. Step 6: Final answer
   x = 91,123.53