Finding the Fourth Proportional to 67,180,989.78, 100,787,476.50 and 21,742,784.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67,180,989.78 : 100,787,476.50 = 21,742,784.28 : x
2. Step 2: Convert to fraction form
   67,180,989.78/100,787,476.50 = 21,742,784.28/x
3. Step 3: Cross multiply
   67,180,989.78x = 100,787,476.50 × 21,742,784.28
4. Step 4: Simplify right side
   67,180,989.78x = 2,191,400,359,665,069.50
5. Step 5: Solve for x
   x = 2,191,400,359,665,069.50/67,180,989.78
6. Step 6: Final answer
   x = 32,619,352.09