Finding the Fourth Proportional to 119,782,915.53, 165,300,921.42 and 64,778,772.03

Step by Step Solution

1. Step 1: Write the proportion equation
   119,782,915.53 : 165,300,921.42 = 64,778,772.03 : x
2. Step 2: Convert to fraction form
   119,782,915.53/165,300,921.42 = 64,778,772.03/x
3. Step 3: Cross multiply
   119,782,915.53x = 165,300,921.42 × 64,778,772.03
4. Step 4: Simplify right side
   119,782,915.53x = 10,707,990,705,015,124
5. Step 5: Solve for x
   x = 10,707,990,705,015,124/119,782,915.53
6. Step 6: Final answer
   x = 89,394,974.71