Finding the Fourth Proportional to 111,161.61, 153,402.71 and 60,860.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,161.61 : 153,402.71 = 60,860.25 : x
2. Step 2: Convert to fraction form
   111,161.61/153,402.71 = 60,860.25/x
3. Step 3: Cross multiply
   111,161.61x = 153,402.71 × 60,860.25
4. Step 4: Simplify right side
   111,161.61x = 9,336,126,976.98
5. Step 5: Solve for x
   x = 9,336,126,976.98/111,161.61
6. Step 6: Final answer
   x = 83,986.97