Finding the Fourth Proportional to 116,980,113.33, 161,437,596.55 and 64,769,146.09

Step by Step Solution

1. Step 1: Write the proportion equation
   116,980,113.33 : 161,437,596.55 = 64,769,146.09 : x
2. Step 2: Convert to fraction form
   116,980,113.33/161,437,596.55 = 64,769,146.09/x
3. Step 3: Cross multiply
   116,980,113.33x = 161,437,596.55 × 64,769,146.09
4. Step 4: Simplify right side
   116,980,113.33x = 10,456,175,274,799,914
5. Step 5: Solve for x
   x = 10,456,175,274,799,914/116,980,113.33
6. Step 6: Final answer
   x = 89,384,212.21