Finding the Fourth Proportional to 111,570.56, 153,970.92 and 61,269.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,570.56 : 153,970.92 = 61,269.56 : x
2. Step 2: Convert to fraction form
   111,570.56/153,970.92 = 61,269.56/x
3. Step 3: Cross multiply
   111,570.56x = 153,970.92 × 61,269.56
4. Step 4: Simplify right side
   111,570.56x = 9,433,730,521.20
5. Step 5: Solve for x
   x = 9,433,730,521.20/111,570.56
6. Step 6: Final answer
   x = 84,553.94