Finding the Fourth Proportional to 51,158.17, 70,601.52 and 31,016.98

Step by Step Solution

1. Step 1: Write the proportion equation
   51,158.17 : 70,601.52 = 31,016.98 : x
2. Step 2: Convert to fraction form
   51,158.17/70,601.52 = 31,016.98/x
3. Step 3: Cross multiply
   51,158.17x = 70,601.52 × 31,016.98
4. Step 4: Simplify right side
   51,158.17x = 2,189,845,933.81
5. Step 5: Solve for x
   x = 2,189,845,933.81/51,158.17
6. Step 6: Final answer
   x = 42,805.40