Finding the Fourth Proportional to 62,978.90, 86,906.93 and 34,684.59

Step by Step Solution

1. Step 1: Write the proportion equation
   62,978.90 : 86,906.93 = 34,684.59 : x
2. Step 2: Convert to fraction form
   62,978.90/86,906.93 = 34,684.59/x
3. Step 3: Cross multiply
   62,978.90x = 86,906.93 × 34,684.59
4. Step 4: Simplify right side
   62,978.90x = 3,014,331,321.92
5. Step 5: Solve for x
   x = 3,014,331,321.92/62,978.90
6. Step 6: Final answer
   x = 47,862.56