Finding the Fourth Proportional to 119,616,290.50, 165,070,547.31 and 64,612,147.54

Step by Step Solution

1. Step 1: Write the proportion equation
   119,616,290.50 : 165,070,547.31 = 64,612,147.54 : x
2. Step 2: Convert to fraction form
   119,616,290.50/165,070,547.31 = 64,612,147.54/x
3. Step 3: Cross multiply
   119,616,290.50x = 165,070,547.31 × 64,612,147.54
4. Step 4: Simplify right side
   119,616,290.50x = 10,665,562,557,302,270
5. Step 5: Solve for x
   x = 10,665,562,557,302,270/119,616,290.50
6. Step 6: Final answer
   x = 89,164,799.48