Finding the Fourth Proportional to 88,002.79, 131,990.81 and 28,837.15

Step by Step Solution

1. Step 1: Write the proportion equation
   88,002.79 : 131,990.81 = 28,837.15 : x
2. Step 2: Convert to fraction form
   88,002.79/131,990.81 = 28,837.15/x
3. Step 3: Cross multiply
   88,002.79x = 131,990.81 × 28,837.15
4. Step 4: Simplify right side
   88,002.79x = 3,806,237,982.45
5. Step 5: Solve for x
   x = 3,806,237,982.45/88,002.79
6. Step 6: Final answer
   x = 43,251.34