Finding the Fourth Proportional to 67,455.59, 101,173.86 and 42,419.30

Step by Step Solution

1. Step 1: Write the proportion equation
   67,455.59 : 101,173.86 = 42,419.30 : x
2. Step 2: Convert to fraction form
   67,455.59/101,173.86 = 42,419.30/x
3. Step 3: Cross multiply
   67,455.59x = 101,173.86 × 42,419.30
4. Step 4: Simplify right side
   67,455.59x = 4,291,723,813.63
5. Step 5: Solve for x
   x = 4,291,723,813.63/67,455.59
6. Step 6: Final answer
   x = 63,622.96