Finding the Fourth Proportional to 118,556.32, 177,756.72 and 77,032.48

Step by Step Solution

1. Step 1: Write the proportion equation
   118,556.32 : 177,756.72 = 77,032.48 : x
2. Step 2: Convert to fraction form
   118,556.32/177,756.72 = 77,032.48/x
3. Step 3: Cross multiply
   118,556.32x = 177,756.72 × 77,032.48
4. Step 4: Simplify right side
   118,556.32x = 13,693,040,978.27
5. Step 5: Solve for x
   x = 13,693,040,978.27/118,556.32
6. Step 6: Final answer
   x = 115,498.20