Finding the Fourth Proportional to 108,523.10, 152,139.70 and 108,523.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,523.10 : 152,139.70 = 108,523.10 : x
2. Step 2: Convert to fraction form
   108,523.10/152,139.70 = 108,523.10/x
3. Step 3: Cross multiply
   108,523.10x = 152,139.70 × 108,523.10
4. Step 4: Simplify right side
   108,523.10x = 16,510,671,877.07
5. Step 5: Solve for x
   x = 16,510,671,877.07/108,523.10
6. Step 6: Final answer
   x = 152,139.70