Finding the Fourth Proportional to 152,919.86, 210,944.29 and 142,095.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,919.86 : 210,944.29 = 142,095.12 : x
2. Step 2: Convert to fraction form
   152,919.86/210,944.29 = 142,095.12/x
3. Step 3: Cross multiply
   152,919.86x = 210,944.29 × 142,095.12
4. Step 4: Simplify right side
   152,919.86x = 29,974,154,200.86
5. Step 5: Solve for x
   x = 29,974,154,200.86/152,919.86
6. Step 6: Final answer
   x = 196,012.18