Finding the Fourth Proportional to 105,263.24, 157,758.78 and 78,760.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,263.24 : 157,758.78 = 78,760.04 : x
2. Step 2: Convert to fraction form
   105,263.24/157,758.78 = 78,760.04/x
3. Step 3: Cross multiply
   105,263.24x = 157,758.78 × 78,760.04
4. Step 4: Simplify right side
   105,263.24x = 12,425,087,823.15
5. Step 5: Solve for x
   x = 12,425,087,823.15/105,263.24
6. Step 6: Final answer
   x = 118,038.24