Finding the Fourth Proportional to 152,646.27, 210,468.78 and 98,911.68

Step by Step Solution

1. Step 1: Write the proportion equation
   152,646.27 : 210,468.78 = 98,911.68 : x
2. Step 2: Convert to fraction form
   152,646.27/210,468.78 = 98,911.68/x
3. Step 3: Cross multiply
   152,646.27x = 210,468.78 × 98,911.68
4. Step 4: Simplify right side
   152,646.27x = 20,817,820,617.35
5. Step 5: Solve for x
   x = 20,817,820,617.35/152,646.27
6. Step 6: Final answer
   x = 136,379.49