Finding the Fourth Proportional to 111,034.56, 166,477.86 and 61,138.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,034.56 : 166,477.86 = 61,138.16 : x
2. Step 2: Convert to fraction form
   111,034.56/166,477.86 = 61,138.16/x
3. Step 3: Cross multiply
   111,034.56x = 166,477.86 × 61,138.16
4. Step 4: Simplify right side
   111,034.56x = 10,178,148,903.06
5. Step 5: Solve for x
   x = 10,178,148,903.06/111,034.56
6. Step 6: Final answer
   x = 91,666.49