Finding the Fourth Proportional to 12,819,881.97, 17,693,927.06 and 9,716,993.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,819,881.97 : 17,693,927.06 = 9,716,993.10 : x
2. Step 2: Convert to fraction form
   12,819,881.97/17,693,927.06 = 9,716,993.10/x
3. Step 3: Cross multiply
   12,819,881.97x = 17,693,927.06 × 9,716,993.10
4. Step 4: Simplify right side
   12,819,881.97x = 171,931,767,105,338.31
5. Step 5: Solve for x
   x = 171,931,767,105,338.31/12,819,881.97
6. Step 6: Final answer
   x = 13,411,337.76