Finding the Fourth Proportional to 73,847.20, 101,907.82 and 42,015.40

Step by Step Solution

1. Step 1: Write the proportion equation
   73,847.20 : 101,907.82 = 42,015.40 : x
2. Step 2: Convert to fraction form
   73,847.20/101,907.82 = 42,015.40/x
3. Step 3: Cross multiply
   73,847.20x = 101,907.82 × 42,015.40
4. Step 4: Simplify right side
   73,847.20x = 4,281,697,820.43
5. Step 5: Solve for x
   x = 4,281,697,820.43/73,847.20
6. Step 6: Final answer
   x = 57,980.50