Finding the Fourth Proportional to 10,118.33, 13,931.52 and 8,602.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,118.33 : 13,931.52 = 8,602.91 : x
2. Step 2: Convert to fraction form
   10,118.33/13,931.52 = 8,602.91/x
3. Step 3: Cross multiply
   10,118.33x = 13,931.52 × 8,602.91
4. Step 4: Simplify right side
   10,118.33x = 119,851,612.72
5. Step 5: Solve for x
   x = 119,851,612.72/10,118.33
6. Step 6: Final answer
   x = 11,845.00