Finding the Fourth Proportional to 1,068,345,062.76, 1,602,549,087 and 911,912,568.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,345,062.76 : 1,602,549,087 = 911,912,568.60 : x
2. Step 2: Convert to fraction form
   1,068,345,062.76/1,602,549,087 = 911,912,568.60/x
3. Step 3: Cross multiply
   1,068,345,062.76x = 1,602,549,087 × 911,912,568.60
4. Step 4: Simplify right side
   1,068,345,062.76x = 1,461,384,654,233,754,880
5. Step 5: Solve for x
   x = 1,461,384,654,233,754,880/1,068,345,062.76
6. Step 6: Final answer
   x = 1,367,895,734.42