Finding the Fourth Proportional to 42,373.08, 58,485.60 and 28,949.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,373.08 : 58,485.60 = 28,949.76 : x
2. Step 2: Convert to fraction form
   42,373.08/58,485.60 = 28,949.76/x
3. Step 3: Cross multiply
   42,373.08x = 58,485.60 × 28,949.76
4. Step 4: Simplify right side
   42,373.08x = 1,693,144,083.46
5. Step 5: Solve for x
   x = 1,693,144,083.46/42,373.08
6. Step 6: Final answer
   x = 39,958.01