Finding the Fourth Proportional to 34,168.42, 47,157.90 and 28,493.15

Step by Step Solution

1. Step 1: Write the proportion equation
   34,168.42 : 47,157.90 = 28,493.15 : x
2. Step 2: Convert to fraction form
   34,168.42/47,157.90 = 28,493.15/x
3. Step 3: Cross multiply
   34,168.42x = 47,157.90 × 28,493.15
4. Step 4: Simplify right side
   34,168.42x = 1,343,677,118.39
5. Step 5: Solve for x
   x = 1,343,677,118.39/34,168.42
6. Step 6: Final answer
   x = 39,325.12