Finding the Fourth Proportional to 290,980,947.67, 436,664,196.51 and 159,914,753.89

Step by Step Solution

1. Step 1: Write the proportion equation
   290,980,947.67 : 436,664,196.51 = 159,914,753.89 : x
2. Step 2: Convert to fraction form
   290,980,947.67/436,664,196.51 = 159,914,753.89/x
3. Step 3: Cross multiply
   290,980,947.67x = 436,664,196.51 × 159,914,753.89
4. Step 4: Simplify right side
   290,980,947.67x = 69,829,047,517,471,240
5. Step 5: Solve for x
   x = 69,829,047,517,471,240/290,980,947.67
6. Step 6: Final answer
   x = 239,978,074.43