Finding the Fourth Proportional to 83,892.90, 115,788.78 and 48,107.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,892.90 : 115,788.78 = 48,107.10 : x
2. Step 2: Convert to fraction form
   83,892.90/115,788.78 = 48,107.10/x
3. Step 3: Cross multiply
   83,892.90x = 115,788.78 × 48,107.10
4. Step 4: Simplify right side
   83,892.90x = 5,570,262,418.34
5. Step 5: Solve for x
   x = 5,570,262,418.34/83,892.90
6. Step 6: Final answer
   x = 66,397.30