Finding the Fourth Proportional to 185,404.10, 278,106.15 and 185,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   185,404.10 : 278,106.15 = 185,404.10 : x
2. Step 2: Convert to fraction form
   185,404.10/278,106.15 = 185,404.10/x
3. Step 3: Cross multiply
   185,404.10x = 278,106.15 × 185,404.10
4. Step 4: Simplify right side
   185,404.10x = 51,562,020,445.22
5. Step 5: Solve for x
   x = 51,562,020,445.22/185,404.10
6. Step 6: Final answer
   x = 278,106.15