Finding the Fourth Proportional to 12,335.15, 17,025.32 and 7,858.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,335.15 : 17,025.32 = 7,858.01 : x
2. Step 2: Convert to fraction form
   12,335.15/17,025.32 = 7,858.01/x
3. Step 3: Cross multiply
   12,335.15x = 17,025.32 × 7,858.01
4. Step 4: Simplify right side
   12,335.15x = 133,785,197.02
5. Step 5: Solve for x
   x = 133,785,197.02/12,335.15
6. Step 6: Final answer
   x = 10,845.85