Finding the Fourth Proportional to 1,116,887,069.94, 1,673,151,113.21 and 870,088,111.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,887,069.94 : 1,673,151,113.21 = 870,088,111.62 : x
2. Step 2: Convert to fraction form
   1,116,887,069.94/1,673,151,113.21 = 870,088,111.62/x
3. Step 3: Cross multiply
   1,116,887,069.94x = 1,673,151,113.21 × 870,088,111.62
4. Step 4: Simplify right side
   1,116,887,069.94x = 1,455,788,892,543,439,360
5. Step 5: Solve for x
   x = 1,455,788,892,543,439,360/1,116,887,069.94
6. Step 6: Final answer
   x = 1,303,434,278.83