Finding the Fourth Proportional to 58,670.16, 80,978.04 and 49,222.32

Step by Step Solution

1. Step 1: Write the proportion equation
   58,670.16 : 80,978.04 = 49,222.32 : x
2. Step 2: Convert to fraction form
   58,670.16/80,978.04 = 49,222.32/x
3. Step 3: Cross multiply
   58,670.16x = 80,978.04 × 49,222.32
4. Step 4: Simplify right side
   58,670.16x = 3,985,926,997.85
5. Step 5: Solve for x
   x = 3,985,926,997.85/58,670.16
6. Step 6: Final answer
   x = 67,937.89