Finding the Fourth Proportional to 40,077,038.05, 55,306,419.71 and 21,742,323.55

Step by Step Solution

1. Step 1: Write the proportion equation
   40,077,038.05 : 55,306,419.71 = 21,742,323.55 : x
2. Step 2: Convert to fraction form
   40,077,038.05/55,306,419.71 = 21,742,323.55/x
3. Step 3: Cross multiply
   40,077,038.05x = 55,306,419.71 × 21,742,323.55
4. Step 4: Simplify right side
   40,077,038.05x = 1,202,490,071,479,939.50
5. Step 5: Solve for x
   x = 1,202,490,071,479,939.50/40,077,038.05
6. Step 6: Final answer
   x = 30,004,464.65