Finding the Fourth Proportional to 12,788,168.10, 19,195,907.49 and 5,505,232.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,788,168.10 : 19,195,907.49 = 5,505,232.50 : x
2. Step 2: Convert to fraction form
   12,788,168.10/19,195,907.49 = 5,505,232.50/x
3. Step 3: Cross multiply
   12,788,168.10x = 19,195,907.49 × 5,505,232.50
4. Step 4: Simplify right side
   12,788,168.10x = 105,677,933,780,941.42
5. Step 5: Solve for x
   x = 105,677,933,780,941.42/12,788,168.10
6. Step 6: Final answer
   x = 8,263,727.29