Finding the Fourth Proportional to 42,023.40, 58,876.50 and 42,023.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,023.40 : 58,876.50 = 42,023.40 : x
2. Step 2: Convert to fraction form
   42,023.40/58,876.50 = 42,023.40/x
3. Step 3: Cross multiply
   42,023.40x = 58,876.50 × 42,023.40
4. Step 4: Simplify right side
   42,023.40x = 2,474,190,710.10
5. Step 5: Solve for x
   x = 2,474,190,710.10/42,023.40
6. Step 6: Final answer
   x = 58,876.50