Finding the Fourth Proportional to 15,921,128.05, 21,964,241.31 and 10,116,795.86

Step by Step Solution

1. Step 1: Write the proportion equation
   15,921,128.05 : 21,964,241.31 = 10,116,795.86 : x
2. Step 2: Convert to fraction form
   15,921,128.05/21,964,241.31 = 10,116,795.86/x
3. Step 3: Cross multiply
   15,921,128.05x = 21,964,241.31 × 10,116,795.86
4. Step 4: Simplify right side
   15,921,128.05x = 222,207,745,487,655.69
5. Step 5: Solve for x
   x = 222,207,745,487,655.69/15,921,128.05
6. Step 6: Final answer
   x = 13,956,784.02