Finding the Fourth Proportional to 112,379.98, 155,081.82 and 61,392.94

Step by Step Solution

1. Step 1: Write the proportion equation
   112,379.98 : 155,081.82 = 61,392.94 : x
2. Step 2: Convert to fraction form
   112,379.98/155,081.82 = 61,392.94/x
3. Step 3: Cross multiply
   112,379.98x = 155,081.82 × 61,392.94
4. Step 4: Simplify right side
   112,379.98x = 9,520,928,194.87
5. Step 5: Solve for x
   x = 9,520,928,194.87/112,379.98
6. Step 6: Final answer
   x = 84,720.86