Finding the Fourth Proportional to 191,031.48, 263,546.46 and 115,448.76

Step by Step Solution

1. Step 1: Write the proportion equation
   191,031.48 : 263,546.46 = 115,448.76 : x
2. Step 2: Convert to fraction form
   191,031.48/263,546.46 = 115,448.76/x
3. Step 3: Cross multiply
   191,031.48x = 263,546.46 × 115,448.76
4. Step 4: Simplify right side
   191,031.48x = 30,426,112,009.39
5. Step 5: Solve for x
   x = 30,426,112,009.39/191,031.48
6. Step 6: Final answer
   x = 159,272.76