Finding the Fourth Proportional to 82,420.79, 123,598.84 and 29,101.40

Step by Step Solution

1. Step 1: Write the proportion equation
   82,420.79 : 123,598.84 = 29,101.40 : x
2. Step 2: Convert to fraction form
   82,420.79/123,598.84 = 29,101.40/x
3. Step 3: Cross multiply
   82,420.79x = 123,598.84 × 29,101.40
4. Step 4: Simplify right side
   82,420.79x = 3,596,898,591.63
5. Step 5: Solve for x
   x = 3,596,898,591.63/82,420.79
6. Step 6: Final answer
   x = 43,640.67