Finding the Fourth Proportional to 152,053.72, 209,828.01 and 88,386.51

Step by Step Solution

1. Step 1: Write the proportion equation
   152,053.72 : 209,828.01 = 88,386.51 : x
2. Step 2: Convert to fraction form
   152,053.72/209,828.01 = 88,386.51/x
3. Step 3: Cross multiply
   152,053.72x = 209,828.01 × 88,386.51
4. Step 4: Simplify right side
   152,053.72x = 18,545,965,504.15
5. Step 5: Solve for x
   x = 18,545,965,504.15/152,053.72
6. Step 6: Final answer
   x = 121,969.82