Finding the Fourth Proportional to 4,011,906.78, 5,528,786.10 and 3,938,117.48

Step by Step Solution

1. Step 1: Write the proportion equation
   4,011,906.78 : 5,528,786.10 = 3,938,117.48 : x
2. Step 2: Convert to fraction form
   4,011,906.78/5,528,786.10 = 3,938,117.48/x
3. Step 3: Cross multiply
   4,011,906.78x = 5,528,786.10 × 3,938,117.48
4. Step 4: Simplify right side
   4,011,906.78x = 21,773,009,155,947.10
5. Step 5: Solve for x
   x = 21,773,009,155,947.10/4,011,906.78
6. Step 6: Final answer
   x = 5,427,097.48