Finding the Fourth Proportional to 88,389.31, 121,973.61 and 48,103.15

Step by Step Solution

1. Step 1: Write the proportion equation
   88,389.31 : 121,973.61 = 48,103.15 : x
2. Step 2: Convert to fraction form
   88,389.31/121,973.61 = 48,103.15/x
3. Step 3: Cross multiply
   88,389.31x = 121,973.61 × 48,103.15
4. Step 4: Simplify right side
   88,389.31x = 5,867,314,857.87
5. Step 5: Solve for x
   x = 5,867,314,857.87/88,389.31
6. Step 6: Final answer
   x = 66,380.37