Finding the Fourth Proportional to 141,295.74, 194,939.89 and 87,561.15

Step by Step Solution

1. Step 1: Write the proportion equation
   141,295.74 : 194,939.89 = 87,561.15 : x
2. Step 2: Convert to fraction form
   141,295.74/194,939.89 = 87,561.15/x
3. Step 3: Cross multiply
   141,295.74x = 194,939.89 × 87,561.15
4. Step 4: Simplify right side
   141,295.74x = 17,069,161,588.41
5. Step 5: Solve for x
   x = 17,069,161,588.41/141,295.74
6. Step 6: Final answer
   x = 120,804.50