Finding the Fourth Proportional to 20,588,437.18, 30,872,100.69 and 10,878,272

Step by Step Solution

1. Step 1: Write the proportion equation
   20,588,437.18 : 30,872,100.69 = 10,878,272 : x
2. Step 2: Convert to fraction form
   20,588,437.18/30,872,100.69 = 10,878,272/x
3. Step 3: Cross multiply
   20,588,437.18x = 30,872,100.69 × 10,878,272
4. Step 4: Simplify right side
   20,588,437.18x = 335,835,108,462,816.31
5. Step 5: Solve for x
   x = 335,835,108,462,816.31/20,588,437.18
6. Step 6: Final answer
   x = 16,311,831.03