Finding the Fourth Proportional to 116,975,253.32, 161,436,681.72 and 64,764,289.92

Step by Step Solution

1. Step 1: Write the proportion equation
   116,975,253.32 : 161,436,681.72 = 64,764,289.92 : x
2. Step 2: Convert to fraction form
   116,975,253.32/161,436,681.72 = 64,764,289.92/x
3. Step 3: Cross multiply
   116,975,253.32x = 161,436,681.72 × 64,764,289.92
4. Step 4: Simplify right side
   116,975,253.32x = 10,455,332,058,636,844
5. Step 5: Solve for x
   x = 10,455,332,058,636,844/116,975,253.32
6. Step 6: Final answer
   x = 89,380,717.39