Finding the Fourth Proportional to 71,321.42, 98,426.94 and 43,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,321.42 : 98,426.94 = 43,026.50 : x
2. Step 2: Convert to fraction form
   71,321.42/98,426.94 = 43,026.50/x
3. Step 3: Cross multiply
   71,321.42x = 98,426.94 × 43,026.50
4. Step 4: Simplify right side
   71,321.42x = 4,234,966,733.91
5. Step 5: Solve for x
   x = 4,234,966,733.91/71,321.42
6. Step 6: Final answer
   x = 59,378.61