Finding the Fourth Proportional to 9,151,215.20, 12,623,430.12 and 5,707,477.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,151,215.20 : 12,623,430.12 = 5,707,477.52 : x
2. Step 2: Convert to fraction form
   9,151,215.20/12,623,430.12 = 5,707,477.52/x
3. Step 3: Cross multiply
   9,151,215.20x = 12,623,430.12 × 5,707,477.52
4. Step 4: Simplify right side
   9,151,215.20x = 72,047,943,635,190.89
5. Step 5: Solve for x
   x = 72,047,943,635,190.89/9,151,215.20
6. Step 6: Final answer
   x = 7,873,046.59