Finding the Fourth Proportional to 127,771.35, 176,324.71 and 76,784.86

Step by Step Solution

1. Step 1: Write the proportion equation
   127,771.35 : 176,324.71 = 76,784.86 : x
2. Step 2: Convert to fraction form
   127,771.35/176,324.71 = 76,784.86/x
3. Step 3: Cross multiply
   127,771.35x = 176,324.71 × 76,784.86
4. Step 4: Simplify right side
   127,771.35x = 13,539,068,171.89
5. Step 5: Solve for x
   x = 13,539,068,171.89/127,771.35
6. Step 6: Final answer
   x = 105,963.26