Finding the Fourth Proportional to 9,578,459.60, 13,218,396.72 and 5,658,344.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,578,459.60 : 13,218,396.72 = 5,658,344.72 : x
2. Step 2: Convert to fraction form
   9,578,459.60/13,218,396.72 = 5,658,344.72/x
3. Step 3: Cross multiply
   9,578,459.60x = 13,218,396.72 × 5,658,344.72
4. Step 4: Simplify right side
   9,578,459.60x = 74,794,245,287,477.31
5. Step 5: Solve for x
   x = 74,794,245,287,477.31/9,578,459.60
6. Step 6: Final answer
   x = 7,808,588.06