Finding the Fourth Proportional to 11,588.60, 17,385.56 and 4,925.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,588.60 : 17,385.56 = 4,925.31 : x
2. Step 2: Convert to fraction form
   11,588.60/17,385.56 = 4,925.31/x
3. Step 3: Cross multiply
   11,588.60x = 17,385.56 × 4,925.31
4. Step 4: Simplify right side
   11,588.60x = 85,629,272.52
5. Step 5: Solve for x
   x = 85,629,272.52/11,588.60
6. Step 6: Final answer
   x = 7,389.10