Finding the Fourth Proportional to 118,889.14, 164,068.86 and 71,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,889.14 : 164,068.86 = 71,144.50 : x
2. Step 2: Convert to fraction form
   118,889.14/164,068.86 = 71,144.50/x
3. Step 3: Cross multiply
   118,889.14x = 164,068.86 × 71,144.50
4. Step 4: Simplify right side
   118,889.14x = 11,672,597,010.27
5. Step 5: Solve for x
   x = 11,672,597,010.27/118,889.14
6. Step 6: Final answer
   x = 98,180.52