Finding the Fourth Proportional to 31,492.69, 47,238.97 and 21,602.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,492.69 : 47,238.97 = 21,602.02 : x
2. Step 2: Convert to fraction form
   31,492.69/47,238.97 = 21,602.02/x
3. Step 3: Cross multiply
   31,492.69x = 47,238.97 × 21,602.02
4. Step 4: Simplify right side
   31,492.69x = 1,020,457,174.72
5. Step 5: Solve for x
   x = 1,020,457,174.72/31,492.69
6. Step 6: Final answer
   x = 32,402.99