Finding the Fourth Proportional to 50,428.04, 69,559.99 and 31,050.07

Step by Step Solution

1. Step 1: Write the proportion equation
   50,428.04 : 69,559.99 = 31,050.07 : x
2. Step 2: Convert to fraction form
   50,428.04/69,559.99 = 31,050.07/x
3. Step 3: Cross multiply
   50,428.04x = 69,559.99 × 31,050.07
4. Step 4: Simplify right side
   50,428.04x = 2,159,842,307.17
5. Step 5: Solve for x
   x = 2,159,842,307.17/50,428.04
6. Step 6: Final answer
   x = 42,830.19