Finding the Fourth Proportional to 16,139,139.61, 24,210,163.17 and 5,209,588.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139,139.61 : 24,210,163.17 = 5,209,588.32 : x
2. Step 2: Convert to fraction form
   16,139,139.61/24,210,163.17 = 5,209,588.32/x
3. Step 3: Cross multiply
   16,139,139.61x = 24,210,163.17 × 5,209,588.32
4. Step 4: Simplify right side
   16,139,139.61x = 126,124,983,154,675.38
5. Step 5: Solve for x
   x = 126,124,983,154,675.38/16,139,139.61
6. Step 6: Final answer
   x = 7,814,851.73