Finding the Fourth Proportional to 42,412.60, 59,455.40 and 42,412.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,412.60 : 59,455.40 = 42,412.60 : x
2. Step 2: Convert to fraction form
   42,412.60/59,455.40 = 42,412.60/x
3. Step 3: Cross multiply
   42,412.60x = 59,455.40 × 42,412.60
4. Step 4: Simplify right side
   42,412.60x = 2,521,658,098.04
5. Step 5: Solve for x
   x = 2,521,658,098.04/42,412.60
6. Step 6: Final answer
   x = 59,455.40