Finding the Fourth Proportional to 58,357.14, 80,420.49 and 42,416.34

Step by Step Solution

1. Step 1: Write the proportion equation
   58,357.14 : 80,420.49 = 42,416.34 : x
2. Step 2: Convert to fraction form
   58,357.14/80,420.49 = 42,416.34/x
3. Step 3: Cross multiply
   58,357.14x = 80,420.49 × 42,416.34
4. Step 4: Simplify right side
   58,357.14x = 3,411,142,846.81
5. Step 5: Solve for x
   x = 3,411,142,846.81/58,357.14
6. Step 6: Final answer
   x = 58,452.88