Finding the Fourth Proportional to 268,243,605.45, 402,410,212.52 and 83,974,410.32

Step by Step Solution

1. Step 1: Write the proportion equation
   268,243,605.45 : 402,410,212.52 = 83,974,410.32 : x
2. Step 2: Convert to fraction form
   268,243,605.45/402,410,212.52 = 83,974,410.32/x
3. Step 3: Cross multiply
   268,243,605.45x = 402,410,212.52 × 83,974,410.32
4. Step 4: Simplify right side
   268,243,605.45x = 33,792,160,300,680,956
5. Step 5: Solve for x
   x = 33,792,160,300,680,956/268,243,605.45
6. Step 6: Final answer
   x = 125,975,641.60