Finding the Fourth Proportional to 58,012.21, 80,071.37 and 35,643.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,012.21 : 80,071.37 = 35,643.25 : x
2. Step 2: Convert to fraction form
   58,012.21/80,071.37 = 35,643.25/x
3. Step 3: Cross multiply
   58,012.21x = 80,071.37 × 35,643.25
4. Step 4: Simplify right side
   58,012.21x = 2,854,003,858.75
5. Step 5: Solve for x
   x = 2,854,003,858.75/58,012.21
6. Step 6: Final answer
   x = 49,196.61