Finding the Fourth Proportional to 112,406.62, 155,116.33 and 61,418.54

Step by Step Solution

1. Step 1: Write the proportion equation
   112,406.62 : 155,116.33 = 61,418.54 : x
2. Step 2: Convert to fraction form
   112,406.62/155,116.33 = 61,418.54/x
3. Step 3: Cross multiply
   112,406.62x = 155,116.33 × 61,418.54
4. Step 4: Simplify right side
   112,406.62x = 9,527,018,518.76
5. Step 5: Solve for x
   x = 9,527,018,518.76/112,406.62
6. Step 6: Final answer
   x = 84,754.96