Finding the Fourth Proportional to 852,186,405.72, 1,175,950,260.54 and 522,116,667.48

Step by Step Solution

1. Step 1: Write the proportion equation
   852,186,405.72 : 1,175,950,260.54 = 522,116,667.48 : x
2. Step 2: Convert to fraction form
   852,186,405.72/1,175,950,260.54 = 522,116,667.48/x
3. Step 3: Cross multiply
   852,186,405.72x = 1,175,950,260.54 × 522,116,667.48
4. Step 4: Simplify right side
   852,186,405.72x = 613,983,231,155,382,528
5. Step 5: Solve for x
   x = 613,983,231,155,382,528/852,186,405.72
6. Step 6: Final answer
   x = 720,479,964.28