Finding the Fourth Proportional to 159,730.63, 220,428.89 and 88,109.62

Step by Step Solution

1. Step 1: Write the proportion equation
   159,730.63 : 220,428.89 = 88,109.62 : x
2. Step 2: Convert to fraction form
   159,730.63/220,428.89 = 88,109.62/x
3. Step 3: Cross multiply
   159,730.63x = 220,428.89 × 88,109.62
4. Step 4: Simplify right side
   159,730.63x = 19,421,905,294.37
5. Step 5: Solve for x
   x = 19,421,905,294.37/159,730.63
6. Step 6: Final answer
   x = 121,591.62