Finding the Fourth Proportional to 73,213.50, 101,000.79 and 42,989.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73,213.50 : 101,000.79 = 42,989.10 : x
2. Step 2: Convert to fraction form
   73,213.50/101,000.79 = 42,989.10/x
3. Step 3: Cross multiply
   73,213.50x = 101,000.79 × 42,989.10
4. Step 4: Simplify right side
   73,213.50x = 4,341,933,061.39
5. Step 5: Solve for x
   x = 4,341,933,061.39/73,213.50
6. Step 6: Final answer
   x = 59,305.09