Finding the Fourth Proportional to 126,904.51, 175,062.71 and 86,054.82

Step by Step Solution

1. Step 1: Write the proportion equation
   126,904.51 : 175,062.71 = 86,054.82 : x
2. Step 2: Convert to fraction form
   126,904.51/175,062.71 = 86,054.82/x
3. Step 3: Cross multiply
   126,904.51x = 175,062.71 × 86,054.82
4. Step 4: Simplify right side
   126,904.51x = 15,064,989,997.76
5. Step 5: Solve for x
   x = 15,064,989,997.76/126,904.51
6. Step 6: Final answer
   x = 118,711.23