Finding the Fourth Proportional to 156,492.73, 215,926.72 and 92,851.21

Step by Step Solution

1. Step 1: Write the proportion equation
   156,492.73 : 215,926.72 = 92,851.21 : x
2. Step 2: Convert to fraction form
   156,492.73/215,926.72 = 92,851.21/x
3. Step 3: Cross multiply
   156,492.73x = 215,926.72 × 92,851.21
4. Step 4: Simplify right side
   156,492.73x = 20,049,057,223.33
5. Step 5: Solve for x
   x = 20,049,057,223.33/156,492.73
6. Step 6: Final answer
   x = 128,114.94