Finding the Fourth Proportional to 42,008.10, 58,986.30 and 42,008.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,008.10 : 58,986.30 = 42,008.10 : x
2. Step 2: Convert to fraction form
   42,008.10/58,986.30 = 42,008.10/x
3. Step 3: Cross multiply
   42,008.10x = 58,986.30 × 42,008.10
4. Step 4: Simplify right side
   42,008.10x = 2,477,902,389.03
5. Step 5: Solve for x
   x = 2,477,902,389.03/42,008.10
6. Step 6: Final answer
   x = 58,986.30