Finding the Fourth Proportional to 8,142,404.10, 12,213,606.15 and 4,948,509.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142,404.10 : 12,213,606.15 = 4,948,509.30 : x
2. Step 2: Convert to fraction form
   8,142,404.10/12,213,606.15 = 4,948,509.30/x
3. Step 3: Cross multiply
   8,142,404.10x = 12,213,606.15 × 4,948,509.30
4. Step 4: Simplify right side
   8,142,404.10x = 60,439,143,619,812.20
5. Step 5: Solve for x
   x = 60,439,143,619,812.20/8,142,404.10
6. Step 6: Final answer
   x = 7,422,763.95