Finding the Fourth Proportional to 152,919.86, 210,783.92 and 103,846.05

Step by Step Solution

1. Step 1: Write the proportion equation
   152,919.86 : 210,783.92 = 103,846.05 : x
2. Step 2: Convert to fraction form
   152,919.86/210,783.92 = 103,846.05/x
3. Step 3: Cross multiply
   152,919.86x = 210,783.92 × 103,846.05
4. Step 4: Simplify right side
   152,919.86x = 21,889,076,976.29
5. Step 5: Solve for x
   x = 21,889,076,976.29/152,919.86
6. Step 6: Final answer
   x = 143,140.84