Finding the Fourth Proportional to 31,492.61, 43,459.76 and 17,345.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,492.61 : 43,459.76 = 17,345.48 : x
2. Step 2: Convert to fraction form
   31,492.61/43,459.76 = 17,345.48/x
3. Step 3: Cross multiply
   31,492.61x = 43,459.76 × 17,345.48
4. Step 4: Simplify right side
   31,492.61x = 753,830,549.90
5. Step 5: Solve for x
   x = 753,830,549.90/31,492.61
6. Step 6: Final answer
   x = 23,936.75