Finding the Fourth Proportional to 10,835.31, 16,256.58 and 4,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,835.31 : 16,256.58 = 4,987.50 : x
2. Step 2: Convert to fraction form
   10,835.31/16,256.58 = 4,987.50/x
3. Step 3: Cross multiply
   10,835.31x = 16,256.58 × 4,987.50
4. Step 4: Simplify right side
   10,835.31x = 81,079,692.75
5. Step 5: Solve for x
   x = 81,079,692.75/10,835.31
6. Step 6: Final answer
   x = 7,482.91