Finding the Fourth Proportional to 50,439,052, 69,605,969.52 and 28,709,020

Step by Step Solution

1. Step 1: Write the proportion equation
   50,439,052 : 69,605,969.52 = 28,709,020 : x
2. Step 2: Convert to fraction form
   50,439,052/69,605,969.52 = 28,709,020/x
3. Step 3: Cross multiply
   50,439,052x = 69,605,969.52 × 28,709,020
4. Step 4: Simplify right side
   50,439,052x = 1,998,319,171,069,070.25
5. Step 5: Solve for x
   x = 1,998,319,171,069,070.25/50,439,052
6. Step 6: Final answer
   x = 39,618,491.86