Finding the Fourth Proportional to 71,099.22, 98,148.24 and 42,428.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,099.22 : 98,148.24 = 42,428.82 : x
2. Step 2: Convert to fraction form
   71,099.22/98,148.24 = 42,428.82/x
3. Step 3: Cross multiply
   71,099.22x = 98,148.24 × 42,428.82
4. Step 4: Simplify right side
   71,099.22x = 4,164,314,008.28
5. Step 5: Solve for x
   x = 4,164,314,008.28/71,099.22
6. Step 6: Final answer
   x = 58,570.46