Finding the Fourth Proportional to 42,156.21, 63,245.15 and 34,672.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.21 : 63,245.15 = 34,672.62 : x
2. Step 2: Convert to fraction form
   42,156.21/63,245.15 = 34,672.62/x
3. Step 3: Cross multiply
   42,156.21x = 63,245.15 × 34,672.62
4. Step 4: Simplify right side
   42,156.21x = 2,192,875,441.66
5. Step 5: Solve for x
   x = 2,192,875,441.66/42,156.21
6. Step 6: Final answer
   x = 52,017.85