Finding the Fourth Proportional to 118,875.12, 164,031.96 and 71,118.96

Step by Step Solution

1. Step 1: Write the proportion equation
   118,875.12 : 164,031.96 = 71,118.96 : x
2. Step 2: Convert to fraction form
   118,875.12/164,031.96 = 71,118.96/x
3. Step 3: Cross multiply
   118,875.12x = 164,031.96 × 71,118.96
4. Step 4: Simplify right side
   118,875.12x = 11,665,782,401.96
5. Step 5: Solve for x
   x = 11,665,782,401.96/118,875.12
6. Step 6: Final answer
   x = 98,134.77