Finding the Fourth Proportional to 15,674,087.72, 21,630,957.86 and 8,704,796.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,674,087.72 : 21,630,957.86 = 8,704,796.69 : x
2. Step 2: Convert to fraction form
   15,674,087.72/21,630,957.86 = 8,704,796.69/x
3. Step 3: Cross multiply
   15,674,087.72x = 21,630,957.86 × 8,704,796.69
4. Step 4: Simplify right side
   15,674,087.72x = 188,293,090,457,096.91
5. Step 5: Solve for x
   x = 188,293,090,457,096.91/15,674,087.72
6. Step 6: Final answer
   x = 12,013,017.52