Finding the Fourth Proportional to 109,069.30, 152,800.70 and 109,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,069.30 : 152,800.70 = 109,069.30 : x
2. Step 2: Convert to fraction form
   109,069.30/152,800.70 = 109,069.30/x
3. Step 3: Cross multiply
   109,069.30x = 152,800.70 × 109,069.30
4. Step 4: Simplify right side
   109,069.30x = 16,665,865,388.51
5. Step 5: Solve for x
   x = 16,665,865,388.51/109,069.30
6. Step 6: Final answer
   x = 152,800.70