Finding the Fourth Proportional to 102,973.86, 154,169.52 and 65,440.86

Step by Step Solution

1. Step 1: Write the proportion equation
   102,973.86 : 154,169.52 = 65,440.86 : x
2. Step 2: Convert to fraction form
   102,973.86/154,169.52 = 65,440.86/x
3. Step 3: Cross multiply
   102,973.86x = 154,169.52 × 65,440.86
4. Step 4: Simplify right side
   102,973.86x = 10,088,985,974.59
5. Step 5: Solve for x
   x = 10,088,985,974.59/102,973.86
6. Step 6: Final answer
   x = 97,976.19