Finding the Fourth Proportional to 167,031.06, 250,212.78 and 100,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   167,031.06 : 250,212.78 = 100,434.72 : x
2. Step 2: Convert to fraction form
   167,031.06/250,212.78 = 100,434.72/x
3. Step 3: Cross multiply
   167,031.06x = 250,212.78 × 100,434.72
4. Step 4: Simplify right side
   167,031.06x = 25,130,050,499.72
5. Step 5: Solve for x
   x = 25,130,050,499.72/167,031.06
6. Step 6: Final answer
   x = 150,451.36