Finding the Fourth Proportional to 404,455,300.29, 606,146,618.03 and 207,710,766.45

Step by Step Solution

1. Step 1: Write the proportion equation
   404,455,300.29 : 606,146,618.03 = 207,710,766.45 : x
2. Step 2: Convert to fraction form
   404,455,300.29/606,146,618.03 = 207,710,766.45/x
3. Step 3: Cross multiply
   404,455,300.29x = 606,146,618.03 × 207,710,766.45
4. Step 4: Simplify right side
   404,455,300.29x = 125,903,178,611,048,128
5. Step 5: Solve for x
   x = 125,903,178,611,048,128/404,455,300.29
6. Step 6: Final answer
   x = 311,290,712.52