Finding the Fourth Proportional to 28,249,014.71, 42,373,915.72 and 8,054,256.71

Step by Step Solution

1. Step 1: Write the proportion equation
   28,249,014.71 : 42,373,915.72 = 8,054,256.71 : x
2. Step 2: Convert to fraction form
   28,249,014.71/42,373,915.72 = 8,054,256.71/x
3. Step 3: Cross multiply
   28,249,014.71x = 42,373,915.72 × 8,054,256.71
4. Step 4: Simplify right side
   28,249,014.71x = 341,290,394,784,779.25
5. Step 5: Solve for x
   x = 341,290,394,784,779.25/28,249,014.71
6. Step 6: Final answer
   x = 12,081,497.30