Finding the Fourth Proportional to 3,438,055.72, 5,157,131.10 and 913,698.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,438,055.72 : 5,157,131.10 = 913,698.28 : x
2. Step 2: Convert to fraction form
   3,438,055.72/5,157,131.10 = 913,698.28/x
3. Step 3: Cross multiply
   3,438,055.72x = 5,157,131.10 × 913,698.28
4. Step 4: Simplify right side
   3,438,055.72x = 4,712,061,815,804.51
5. Step 5: Solve for x
   x = 4,712,061,815,804.51/3,438,055.72
6. Step 6: Final answer
   x = 1,370,560.05