Finding the Fourth Proportional to 9,978,878.73, 13,769,824.32 and 7,366,772.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,878.73 : 13,769,824.32 = 7,366,772.10 : x
2. Step 2: Convert to fraction form
   9,978,878.73/13,769,824.32 = 7,366,772.10/x
3. Step 3: Cross multiply
   9,978,878.73x = 13,769,824.32 × 7,366,772.10
4. Step 4: Simplify right side
   9,978,878.73x = 101,439,157,622,477.47
5. Step 5: Solve for x
   x = 101,439,157,622,477.47/9,978,878.73
6. Step 6: Final answer
   x = 10,165,386.35