Finding the Fourth Proportional to 72,511.50, 100,066.14 and 42,317.67

Step by Step Solution

1. Step 1: Write the proportion equation
   72,511.50 : 100,066.14 = 42,317.67 : x
2. Step 2: Convert to fraction form
   72,511.50/100,066.14 = 42,317.67/x
3. Step 3: Cross multiply
   72,511.50x = 100,066.14 × 42,317.67
4. Step 4: Simplify right side
   72,511.50x = 4,234,565,890.69
5. Step 5: Solve for x
   x = 4,234,565,890.69/72,511.50
6. Step 6: Final answer
   x = 58,398.54