Finding the Fourth Proportional to 747,404.10, 1,121,106.15 and 248,768.10

Step by Step Solution

1. Step 1: Write the proportion equation
   747,404.10 : 1,121,106.15 = 248,768.10 : x
2. Step 2: Convert to fraction form
   747,404.10/1,121,106.15 = 248,768.10/x
3. Step 3: Cross multiply
   747,404.10x = 1,121,106.15 × 248,768.10
4. Step 4: Simplify right side
   747,404.10x = 278,895,446,833.82
5. Step 5: Solve for x
   x = 278,895,446,833.82/747,404.10
6. Step 6: Final answer
   x = 373,152.15