Finding the Fourth Proportional to 28,268,094.81, 42,390,091.38 and 10,757,663.99

Step by Step Solution

1. Step 1: Write the proportion equation
   28,268,094.81 : 42,390,091.38 = 10,757,663.99 : x
2. Step 2: Convert to fraction form
   28,268,094.81/42,390,091.38 = 10,757,663.99/x
3. Step 3: Cross multiply
   28,268,094.81x = 42,390,091.38 × 10,757,663.99
4. Step 4: Simplify right side
   28,268,094.81x = 456,018,359,337,884.31
5. Step 5: Solve for x
   x = 456,018,359,337,884.31/28,268,094.81
6. Step 6: Final answer
   x = 16,131,909.93