Finding the Fourth Proportional to 126,128.04, 173,875.84 and 99,223.82

Step by Step Solution

1. Step 1: Write the proportion equation
   126,128.04 : 173,875.84 = 99,223.82 : x
2. Step 2: Convert to fraction form
   126,128.04/173,875.84 = 99,223.82/x
3. Step 3: Cross multiply
   126,128.04x = 173,875.84 × 99,223.82
4. Step 4: Simplify right side
   126,128.04x = 17,252,625,050.51
5. Step 5: Solve for x
   x = 17,252,625,050.51/126,128.04
6. Step 6: Final answer
   x = 136,786.59