Finding the Fourth Proportional to 83,146,609.20, 124,578,196.20 and 70,958,895.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,146,609.20 : 124,578,196.20 = 70,958,895.60 : x
2. Step 2: Convert to fraction form
   83,146,609.20/124,578,196.20 = 70,958,895.60/x
3. Step 3: Cross multiply
   83,146,609.20x = 124,578,196.20 × 70,958,895.60
4. Step 4: Simplify right side
   83,146,609.20x = 8,839,931,218,192,116
5. Step 5: Solve for x
   x = 8,839,931,218,192,116/83,146,609.20
6. Step 6: Final answer
   x = 106,317,398.91