Finding the Fourth Proportional to 42,542.40, 58,692.72 and 42,476.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,542.40 : 58,692.72 = 42,476.79 : x
2. Step 2: Convert to fraction form
   42,542.40/58,692.72 = 42,476.79/x
3. Step 3: Cross multiply
   42,542.40x = 58,692.72 × 42,476.79
4. Step 4: Simplify right side
   42,542.40x = 2,493,078,341.97
5. Step 5: Solve for x
   x = 2,493,078,341.97/42,542.40
6. Step 6: Final answer
   x = 58,602.20