Finding the Fourth Proportional to 2,505,371.56, 3,758,024.52 and 612,129.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505,371.56 : 3,758,024.52 = 612,129.40 : x
2. Step 2: Convert to fraction form
   2,505,371.56/3,758,024.52 = 612,129.40/x
3. Step 3: Cross multiply
   2,505,371.56x = 3,758,024.52 × 612,129.40
4. Step 4: Simplify right side
   2,505,371.56x = 2,300,397,294,612.89
5. Step 5: Solve for x
   x = 2,300,397,294,612.89/2,505,371.56
6. Step 6: Final answer
   x = 918,186.08