Finding the Fourth Proportional to 102,595.52, 141,640.72 and 78,205.01

Step by Step Solution

1. Step 1: Write the proportion equation
   102,595.52 : 141,640.72 = 78,205.01 : x
2. Step 2: Convert to fraction form
   102,595.52/141,640.72 = 78,205.01/x
3. Step 3: Cross multiply
   102,595.52x = 141,640.72 × 78,205.01
4. Step 4: Simplify right side
   102,595.52x = 11,077,013,020.29
5. Step 5: Solve for x
   x = 11,077,013,020.29/102,595.52
6. Step 6: Final answer
   x = 107,967.80