Finding the Fourth Proportional to 118,296, 177,356.52 and 71,538.48

Step by Step Solution

1. Step 1: Write the proportion equation
   118,296 : 177,356.52 = 71,538.48 : x
2. Step 2: Convert to fraction form
   118,296/177,356.52 = 71,538.48/x
3. Step 3: Cross multiply
   118,296x = 177,356.52 × 71,538.48
4. Step 4: Simplify right side
   118,296x = 12,687,815,858.89
5. Step 5: Solve for x
   x = 12,687,815,858.89/118,296
6. Step 6: Final answer
   x = 107,254.82