Finding the Fourth Proportional to 111,039.98, 166,499.93 and 57,599.48

Step by Step Solution

1. Step 1: Write the proportion equation
   111,039.98 : 166,499.93 = 57,599.48 : x
2. Step 2: Convert to fraction form
   111,039.98/166,499.93 = 57,599.48/x
3. Step 3: Cross multiply
   111,039.98x = 166,499.93 × 57,599.48
4. Step 4: Simplify right side
   111,039.98x = 9,590,308,267.54
5. Step 5: Solve for x
   x = 9,590,308,267.54/111,039.98
6. Step 6: Final answer
   x = 86,368.07