Finding the Fourth Proportional to 19,978,915.61, 27,570,903.57 and 10,811,558.36

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,915.61 : 27,570,903.57 = 10,811,558.36 : x
2. Step 2: Convert to fraction form
   19,978,915.61/27,570,903.57 = 10,811,558.36/x
3. Step 3: Cross multiply
   19,978,915.61x = 27,570,903.57 × 10,811,558.36
4. Step 4: Simplify right side
   19,978,915.61x = 298,084,432,847,132.81
5. Step 5: Solve for x
   x = 298,084,432,847,132.81/19,978,915.61
6. Step 6: Final answer
   x = 14,919,950.55