Finding the Fourth Proportional to 797,978,730.42, 1,100,604,651.12 and 686,656,124.46

Step by Step Solution

1. Step 1: Write the proportion equation
   797,978,730.42 : 1,100,604,651.12 = 686,656,124.46 : x
2. Step 2: Convert to fraction form
   797,978,730.42/1,100,604,651.12 = 686,656,124.46/x
3. Step 3: Cross multiply
   797,978,730.42x = 1,100,604,651.12 × 686,656,124.46
4. Step 4: Simplify right side
   797,978,730.42x = 755,736,924,300,709,504
5. Step 5: Solve for x
   x = 755,736,924,300,709,504/797,978,730.42
6. Step 6: Final answer
   x = 947,063,994.93