Finding the Fourth Proportional to 144,017.34, 198,779.50 and 87,476.10

Step by Step Solution

1. Step 1: Write the proportion equation
   144,017.34 : 198,779.50 = 87,476.10 : x
2. Step 2: Convert to fraction form
   144,017.34/198,779.50 = 87,476.10/x
3. Step 3: Cross multiply
   144,017.34x = 198,779.50 × 87,476.10
4. Step 4: Simplify right side
   144,017.34x = 17,388,455,419.95
5. Step 5: Solve for x
   x = 17,388,455,419.95/144,017.34
6. Step 6: Final answer
   x = 120,738.62