Finding the Fourth Proportional to 42,369.18, 58,437.05 and 31,034.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,369.18 : 58,437.05 = 31,034.54 : x
2. Step 2: Convert to fraction form
   42,369.18/58,437.05 = 31,034.54/x
3. Step 3: Cross multiply
   42,369.18x = 58,437.05 × 31,034.54
4. Step 4: Simplify right side
   42,369.18x = 1,813,566,956.63
5. Step 5: Solve for x
   x = 1,813,566,956.63/42,369.18
6. Step 6: Final answer
   x = 42,803.92