Finding the Fourth Proportional to 1,157,139,492.56, 1,596,864,219.72 and 628,513,802

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157,139,492.56 : 1,596,864,219.72 = 628,513,802 : x
2. Step 2: Convert to fraction form
   1,157,139,492.56/1,596,864,219.72 = 628,513,802/x
3. Step 3: Cross multiply
   1,157,139,492.56x = 1,596,864,219.72 × 628,513,802
4. Step 4: Simplify right side
   1,157,139,492.56x = 1,003,651,202,013,980,544
5. Step 5: Solve for x
   x = 1,003,651,202,013,980,544/1,157,139,492.56
6. Step 6: Final answer
   x = 867,355,412.61