Finding the Fourth Proportional to 111,597.82, 153,987.69 and 71,347.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,597.82 : 153,987.69 = 71,347.30 : x
2. Step 2: Convert to fraction form
   111,597.82/153,987.69 = 71,347.30/x
3. Step 3: Cross multiply
   111,597.82x = 153,987.69 × 71,347.30
4. Step 4: Simplify right side
   111,597.82x = 10,986,605,914.74
5. Step 5: Solve for x
   x = 10,986,605,914.74/111,597.82
6. Step 6: Final answer
   x = 98,448.21