Finding the Fourth Proportional to 410,988,061.52, 567,245,920.68 and 243,817,113.20

Step by Step Solution

1. Step 1: Write the proportion equation
   410,988,061.52 : 567,245,920.68 = 243,817,113.20 : x
2. Step 2: Convert to fraction form
   410,988,061.52/567,245,920.68 = 243,817,113.20/x
3. Step 3: Cross multiply
   410,988,061.52x = 567,245,920.68 × 243,817,113.20
4. Step 4: Simplify right side
   410,988,061.52x = 138,304,262,854,673,760
5. Step 5: Solve for x
   x = 138,304,262,854,673,760/410,988,061.52
6. Step 6: Final answer
   x = 336,516,497.20