Finding the Fourth Proportional to 852,576,223.01, 1,278,909,498.88 and 262,771,564.71

Step by Step Solution

1. Step 1: Write the proportion equation
   852,576,223.01 : 1,278,909,498.88 = 262,771,564.71 : x
2. Step 2: Convert to fraction form
   852,576,223.01/1,278,909,498.88 = 262,771,564.71/x
3. Step 3: Cross multiply
   852,576,223.01x = 1,278,909,498.88 × 262,771,564.71
4. Step 4: Simplify right side
   852,576,223.01x = 336,061,050,142,522,688
5. Step 5: Solve for x
   x = 336,061,050,142,522,688/852,576,223.01
6. Step 6: Final answer
   x = 394,171,267.12