Finding the Fourth Proportional to 13,146,412.35, 18,142,987.83 and 7,265,920.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,146,412.35 : 18,142,987.83 = 7,265,920.17 : x
2. Step 2: Convert to fraction form
   13,146,412.35/18,142,987.83 = 7,265,920.17/x
3. Step 3: Cross multiply
   13,146,412.35x = 18,142,987.83 × 7,265,920.17
4. Step 4: Simplify right side
   13,146,412.35x = 131,825,501,218,061.52
5. Step 5: Solve for x
   x = 131,825,501,218,061.52/13,146,412.35
6. Step 6: Final answer
   x = 10,027,488.69