Finding the Fourth Proportional to 12,172,450.71, 18,229,695.89 and 7,044,070.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172,450.71 : 18,229,695.89 = 7,044,070.17 : x
2. Step 2: Convert to fraction form
   12,172,450.71/18,229,695.89 = 7,044,070.17/x
3. Step 3: Cross multiply
   12,172,450.71x = 18,229,695.89 × 7,044,070.17
4. Step 4: Simplify right side
   12,172,450.71x = 128,411,256,991,700.27
5. Step 5: Solve for x
   x = 128,411,256,991,700.27/12,172,450.71
6. Step 6: Final answer
   x = 10,549,334.73