Finding the Fourth Proportional to 152,401, 210,264.78 and 98,727.16

Step by Step Solution

1. Step 1: Write the proportion equation
   152,401 : 210,264.78 = 98,727.16 : x
2. Step 2: Convert to fraction form
   152,401/210,264.78 = 98,727.16/x
3. Step 3: Cross multiply
   152,401x = 210,264.78 × 98,727.16
4. Step 4: Simplify right side
   152,401x = 20,758,844,577.42
5. Step 5: Solve for x
   x = 20,758,844,577.42/152,401
6. Step 6: Final answer
   x = 136,212.00