Finding the Fourth Proportional to 9,978,870.24, 13,769,812.56 and 7,366,763.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,870.24 : 13,769,812.56 = 7,366,763.60 : x
2. Step 2: Convert to fraction form
   9,978,870.24/13,769,812.56 = 7,366,763.60/x
3. Step 3: Cross multiply
   9,978,870.24x = 13,769,812.56 × 7,366,763.60
4. Step 4: Simplify right side
   9,978,870.24x = 101,438,953,945,830.81
5. Step 5: Solve for x
   x = 101,438,953,945,830.81/9,978,870.24
6. Step 6: Final answer
   x = 10,165,374.59