Finding the Fourth Proportional to 11,899.86, 17,852.36 and 7,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,899.86 : 17,852.36 = 7,402.50 : x
2. Step 2: Convert to fraction form
   11,899.86/17,852.36 = 7,402.50/x
3. Step 3: Cross multiply
   11,899.86x = 17,852.36 × 7,402.50
4. Step 4: Simplify right side
   11,899.86x = 132,152,057.89
5. Step 5: Solve for x
   x = 132,152,057.89/11,899.86
6. Step 6: Final answer
   x = 11,105.35