Finding the Fourth Proportional to 480,363,870.85, 662,897,240.79 and 268,670,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   480,363,870.85 : 662,897,240.79 = 268,670,196.12 : x
2. Step 2: Convert to fraction form
   480,363,870.85/662,897,240.79 = 268,670,196.12/x
3. Step 3: Cross multiply
   480,363,870.85x = 662,897,240.79 × 268,670,196.12
4. Step 4: Simplify right side
   480,363,870.85x = 178,100,731,690,456,160
5. Step 5: Solve for x
   x = 178,100,731,690,456,160/480,363,870.85
6. Step 6: Final answer
   x = 370,762,129.50