Finding the Fourth Proportional to 64,819.53, 89,467.62 and 42,214.86

Step by Step Solution

1. Step 1: Write the proportion equation
   64,819.53 : 89,467.62 = 42,214.86 : x
2. Step 2: Convert to fraction form
   64,819.53/89,467.62 = 42,214.86/x
3. Step 3: Cross multiply
   64,819.53x = 89,467.62 × 42,214.86
4. Step 4: Simplify right side
   64,819.53x = 3,776,863,052.83
5. Step 5: Solve for x
   x = 3,776,863,052.83/64,819.53
6. Step 6: Final answer
   x = 58,267.36