Finding the Fourth Proportional to 119,584,061.70, 165,026,003.82 and 64,579,918.20

Step by Step Solution

1. Step 1: Write the proportion equation
   119,584,061.70 : 165,026,003.82 = 64,579,918.20 : x
2. Step 2: Convert to fraction form
   119,584,061.70/165,026,003.82 = 64,579,918.20/x
3. Step 3: Cross multiply
   119,584,061.70x = 165,026,003.82 × 64,579,918.20
4. Step 4: Simplify right side
   119,584,061.70x = 10,657,365,827,568,488
5. Step 5: Solve for x
   x = 10,657,365,827,568,488/119,584,061.70
6. Step 6: Final answer
   x = 89,120,286.40