Finding the Fourth Proportional to 9,357,055.74, 12,912,129.54 and 5,436,464.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357,055.74 : 12,912,129.54 = 5,436,464.58 : x
2. Step 2: Convert to fraction form
   9,357,055.74/12,912,129.54 = 5,436,464.58/x
3. Step 3: Cross multiply
   9,357,055.74x = 12,912,129.54 × 5,436,464.58
4. Step 4: Simplify right side
   9,357,055.74x = 70,196,334,896,581.69
5. Step 5: Solve for x
   x = 70,196,334,896,581.69/9,357,055.74
6. Step 6: Final answer
   x = 7,501,968.23