Finding the Fourth Proportional to 9,724,760.96, 13,420,978.20 and 5,374,696.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724,760.96 : 13,420,978.20 = 5,374,696.40 : x
2. Step 2: Convert to fraction form
   9,724,760.96/13,420,978.20 = 5,374,696.40/x
3. Step 3: Cross multiply
   9,724,760.96x = 13,420,978.20 × 5,374,696.40
4. Step 4: Simplify right side
   9,724,760.96x = 72,133,683,216,018.48
5. Step 5: Solve for x
   x = 72,133,683,216,018.48/9,724,760.96
6. Step 6: Final answer
   x = 7,417,527.64