Finding the Fourth Proportional to 62,820.36, 86,706.72 and 35,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   62,820.36 : 86,706.72 = 35,978.04 : x
2. Step 2: Convert to fraction form
   62,820.36/86,706.72 = 35,978.04/x
3. Step 3: Cross multiply
   62,820.36x = 86,706.72 × 35,978.04
4. Step 4: Simplify right side
   62,820.36x = 3,119,537,840.43
5. Step 5: Solve for x
   x = 3,119,537,840.43/62,820.36
6. Step 6: Final answer
   x = 49,658.07