Finding the Fourth Proportional to 61,666.04, 91,957.60 and 61,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,666.04 : 91,957.60 = 61,104.72 : x
2. Step 2: Convert to fraction form
   61,666.04/91,957.60 = 61,104.72/x
3. Step 3: Cross multiply
   61,666.04x = 91,957.60 × 61,104.72
4. Step 4: Simplify right side
   61,666.04x = 5,619,043,399.87
5. Step 5: Solve for x
   x = 5,619,043,399.87/61,666.04
6. Step 6: Final answer
   x = 91,120.55