Finding the Fourth Proportional to 917,447,404.15, 1,376,171,106.23 and 917,447,404.15

Step by Step Solution

1. Step 1: Write the proportion equation
   917,447,404.15 : 1,376,171,106.23 = 917,447,404.15 : x
2. Step 2: Convert to fraction form
   917,447,404.15/1,376,171,106.23 = 917,447,404.15/x
3. Step 3: Cross multiply
   917,447,404.15x = 1,376,171,106.23 × 917,447,404.15
4. Step 4: Simplify right side
   917,447,404.15x = 1,262,564,609,076,947,456
5. Step 5: Solve for x
   x = 1,262,564,609,076,947,456/917,447,404.15
6. Step 6: Final answer
   x = 1,376,171,106.23