Finding the Fourth Proportional to 93,279.60, 128,768.94 and 55,026.18

Step by Step Solution

1. Step 1: Write the proportion equation
   93,279.60 : 128,768.94 = 55,026.18 : x
2. Step 2: Convert to fraction form
   93,279.60/128,768.94 = 55,026.18/x
3. Step 3: Cross multiply
   93,279.60x = 128,768.94 × 55,026.18
4. Step 4: Simplify right side
   93,279.60x = 7,085,662,870.85
5. Step 5: Solve for x
   x = 7,085,662,870.85/93,279.60
6. Step 6: Final answer
   x = 75,961.55