Finding the Fourth Proportional to 152,003.70, 209,709.81 and 88,326.90

Step by Step Solution

1. Step 1: Write the proportion equation
   152,003.70 : 209,709.81 = 88,326.90 : x
2. Step 2: Convert to fraction form
   152,003.70/209,709.81 = 88,326.90/x
3. Step 3: Cross multiply
   152,003.70x = 209,709.81 × 88,326.90
4. Step 4: Simplify right side
   152,003.70x = 18,523,017,416.89
5. Step 5: Solve for x
   x = 18,523,017,416.89/152,003.70
6. Step 6: Final answer
   x = 121,858.99