Finding the Fourth Proportional to 349,757,196.56, 524,817,365.90 and 142,647,552.98

Step by Step Solution

1. Step 1: Write the proportion equation
   349,757,196.56 : 524,817,365.90 = 142,647,552.98 : x
2. Step 2: Convert to fraction form
   349,757,196.56/524,817,365.90 = 142,647,552.98/x
3. Step 3: Cross multiply
   349,757,196.56x = 524,817,365.90 × 142,647,552.98
4. Step 4: Simplify right side
   349,757,196.56x = 74,863,913,007,044,288
5. Step 5: Solve for x
   x = 74,863,913,007,044,288/349,757,196.56
6. Step 6: Final answer
   x = 214,045,382.75