Finding the Fourth Proportional to 917,096,780.18, 1,375,857,688.71 and 262,056,337.94

Step by Step Solution

1. Step 1: Write the proportion equation
   917,096,780.18 : 1,375,857,688.71 = 262,056,337.94 : x
2. Step 2: Convert to fraction form
   917,096,780.18/1,375,857,688.71 = 262,056,337.94/x
3. Step 3: Cross multiply
   917,096,780.18x = 1,375,857,688.71 × 262,056,337.94
4. Step 4: Simplify right side
   917,096,780.18x = 360,552,227,429,935,104
5. Step 5: Solve for x
   x = 360,552,227,429,935,104/917,096,780.18
6. Step 6: Final answer
   x = 393,145,233.11