Finding the Fourth Proportional to 12,770,468.70, 19,139,068.90 and 5,188,570.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770,468.70 : 19,139,068.90 = 5,188,570.62 : x
2. Step 2: Convert to fraction form
   12,770,468.70/19,139,068.90 = 5,188,570.62/x
3. Step 3: Cross multiply
   12,770,468.70x = 19,139,068.90 × 5,188,570.62
4. Step 4: Simplify right side
   12,770,468.70x = 99,304,410,588,695.72
5. Step 5: Solve for x
   x = 99,304,410,588,695.72/12,770,468.70
6. Step 6: Final answer
   x = 7,776,097.57