Finding the Fourth Proportional to 119,790,426.21, 165,310,786.89 and 64,786,282.71

Step by Step Solution

1. Step 1: Write the proportion equation
   119,790,426.21 : 165,310,786.89 = 64,786,282.71 : x
2. Step 2: Convert to fraction form
   119,790,426.21/165,310,786.89 = 64,786,282.71/x
3. Step 3: Cross multiply
   119,790,426.21x = 165,310,786.89 × 64,786,282.71
4. Step 4: Simplify right side
   119,790,426.21x = 10,709,871,374,468,100
5. Step 5: Solve for x
   x = 10,709,871,374,468,100/119,790,426.21
6. Step 6: Final answer
   x = 89,405,069.45