Finding the Fourth Proportional to 112,379.05, 155,085.33 and 61,393.83

Step by Step Solution

1. Step 1: Write the proportion equation
   112,379.05 : 155,085.33 = 61,393.83 : x
2. Step 2: Convert to fraction form
   112,379.05/155,085.33 = 61,393.83/x
3. Step 3: Cross multiply
   112,379.05x = 155,085.33 × 61,393.83
4. Step 4: Simplify right side
   112,379.05x = 9,521,282,385.51
5. Step 5: Solve for x
   x = 9,521,282,385.51/112,379.05
6. Step 6: Final answer
   x = 84,724.71