Finding the Fourth Proportional to 111,561, 153,955.26 and 61,261.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,561 : 153,955.26 = 61,261.08 : x
2. Step 2: Convert to fraction form
   111,561/153,955.26 = 61,261.08/x
3. Step 3: Cross multiply
   111,561x = 153,955.26 × 61,261.08
4. Step 4: Simplify right side
   111,561x = 9,431,465,499.28
5. Step 5: Solve for x
   x = 9,431,465,499.28/111,561
6. Step 6: Final answer
   x = 84,540.88