Finding the Fourth Proportional to 10,380,066.59, 15,573,431.42 and 4,989,107.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,380,066.59 : 15,573,431.42 = 4,989,107.94 : x
2. Step 2: Convert to fraction form
   10,380,066.59/15,573,431.42 = 4,989,107.94/x
3. Step 3: Cross multiply
   10,380,066.59x = 15,573,431.42 × 4,989,107.94
4. Step 4: Simplify right side
   10,380,066.59x = 77,697,530,325,621.94
5. Step 5: Solve for x
   x = 77,697,530,325,621.94/10,380,066.59
6. Step 6: Final answer
   x = 7,485,263.19