Finding the Fourth Proportional to 127,256.09, 175,532.72 and 78,176.25

Step by Step Solution

1. Step 1: Write the proportion equation
   127,256.09 : 175,532.72 = 78,176.25 : x
2. Step 2: Convert to fraction form
   127,256.09/175,532.72 = 78,176.25/x
3. Step 3: Cross multiply
   127,256.09x = 175,532.72 × 78,176.25
4. Step 4: Simplify right side
   127,256.09x = 13,722,489,411.02
5. Step 5: Solve for x
   x = 13,722,489,411.02/127,256.09
6. Step 6: Final answer
   x = 107,833.66