Finding the Fourth Proportional to 152,538.47, 210,510.83 and 87,983.69

Step by Step Solution

1. Step 1: Write the proportion equation
   152,538.47 : 210,510.83 = 87,983.69 : x
2. Step 2: Convert to fraction form
   152,538.47/210,510.83 = 87,983.69/x
3. Step 3: Cross multiply
   152,538.47x = 210,510.83 × 87,983.69
4. Step 4: Simplify right side
   152,538.47x = 18,521,519,608.36
5. Step 5: Solve for x
   x = 18,521,519,608.36/152,538.47
6. Step 6: Final answer
   x = 121,421.96