Finding the Fourth Proportional to 103,961.34, 143,317.35 and 74,101.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,961.34 : 143,317.35 = 74,101.50 : x
2. Step 2: Convert to fraction form
   103,961.34/143,317.35 = 74,101.50/x
3. Step 3: Cross multiply
   103,961.34x = 143,317.35 × 74,101.50
4. Step 4: Simplify right side
   103,961.34x = 10,620,030,611.03
5. Step 5: Solve for x
   x = 10,620,030,611.03/103,961.34
6. Step 6: Final answer
   x = 102,153.65