Finding the Fourth Proportional to 42,754,029.54, 64,130,145.82 and 10,406,112.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,754,029.54 : 64,130,145.82 = 10,406,112.54 : x
2. Step 2: Convert to fraction form
   42,754,029.54/64,130,145.82 = 10,406,112.54/x
3. Step 3: Cross multiply
   42,754,029.54x = 64,130,145.82 × 10,406,112.54
4. Step 4: Simplify right side
   42,754,029.54x = 667,345,514,583,515.25
5. Step 5: Solve for x
   x = 667,345,514,583,515.25/42,754,029.54
6. Step 6: Final answer
   x = 15,608,950.12