Finding the Fourth Proportional to 111,066.88, 166,526.18 and 61,170.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,066.88 : 166,526.18 = 61,170.60 : x
2. Step 2: Convert to fraction form
   111,066.88/166,526.18 = 61,170.60/x
3. Step 3: Cross multiply
   111,066.88x = 166,526.18 × 61,170.60
4. Step 4: Simplify right side
   111,066.88x = 10,186,506,346.31
5. Step 5: Solve for x
   x = 10,186,506,346.31/111,066.88
6. Step 6: Final answer
   x = 91,715.07