Finding the Fourth Proportional to 2,505,363.32, 3,758,012.16 and 612,121.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,363.32 : 3,758,012.16 = 612,121.16 : x
2. Step 2: Convert to fraction form
   2,505,363.32/3,758,012.16 = 612,121.16/x
3. Step 3: Cross multiply
   2,505,363.32x = 3,758,012.16 × 612,121.16
4. Step 4: Simplify right side
   2,505,363.32x = 2,300,358,762,673.31
5. Step 5: Solve for x
   x = 2,300,358,762,673.31/2,505,363.32
6. Step 6: Final answer
   x = 918,173.72