Finding the Fourth Proportional to 13,032.63, 17,985.05 and 7,064.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,032.63 : 17,985.05 = 7,064.31 : x
2. Step 2: Convert to fraction form
   13,032.63/17,985.05 = 7,064.31/x
3. Step 3: Cross multiply
   13,032.63x = 17,985.05 × 7,064.31
4. Step 4: Simplify right side
   13,032.63x = 127,051,968.57
5. Step 5: Solve for x
   x = 127,051,968.57/13,032.63
6. Step 6: Final answer
   x = 9,748.76