Finding the Fourth Proportional to 50,773.31, 70,045.10 and 30,618.99

Step by Step Solution

1. Step 1: Write the proportion equation
   50,773.31 : 70,045.10 = 30,618.99 : x
2. Step 2: Convert to fraction form
   50,773.31/70,045.10 = 30,618.99/x
3. Step 3: Cross multiply
   50,773.31x = 70,045.10 × 30,618.99
4. Step 4: Simplify right side
   50,773.31x = 2,144,710,052.22
5. Step 5: Solve for x
   x = 2,144,710,052.22/50,773.31
6. Step 6: Final answer
   x = 42,240.90