Finding the Fourth Proportional to 28,099,360.53, 42,151,932.12 and 10,606,651.68

Step by Step Solution

1. Step 1: Write the proportion equation
   28,099,360.53 : 42,151,932.12 = 10,606,651.68 : x
2. Step 2: Convert to fraction form
   28,099,360.53/42,151,932.12 = 10,606,651.68/x
3. Step 3: Cross multiply
   28,099,360.53x = 42,151,932.12 × 10,606,651.68
4. Step 4: Simplify right side
   28,099,360.53x = 447,090,861,655,849.69
5. Step 5: Solve for x
   x = 447,090,861,655,849.69/28,099,360.53
6. Step 6: Final answer
   x = 15,911,068.91