Finding the Fourth Proportional to 141,290.88, 194,978.28 and 76,758.45

Step by Step Solution

1. Step 1: Write the proportion equation
   141,290.88 : 194,978.28 = 76,758.45 : x
2. Step 2: Convert to fraction form
   141,290.88/194,978.28 = 76,758.45/x
3. Step 3: Cross multiply
   141,290.88x = 194,978.28 × 76,758.45
4. Step 4: Simplify right side
   141,290.88x = 14,966,230,556.47
5. Step 5: Solve for x
   x = 14,966,230,556.47/141,290.88
6. Step 6: Final answer
   x = 105,924.96