Finding the Fourth Proportional to 152,649.72, 210,646.32 and 88,104.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152,649.72 : 210,646.32 = 88,104.06 : x
2. Step 2: Convert to fraction form
   152,649.72/210,646.32 = 88,104.06/x
3. Step 3: Cross multiply
   152,649.72x = 210,646.32 × 88,104.06
4. Step 4: Simplify right side
   152,649.72x = 18,558,796,016.06
5. Step 5: Solve for x
   x = 18,558,796,016.06/152,649.72
6. Step 6: Final answer
   x = 121,577.66