Finding the Fourth Proportional to 112,791.60, 155,648.16 and 65,046.96

Step by Step Solution

1. Step 1: Write the proportion equation
   112,791.60 : 155,648.16 = 65,046.96 : x
2. Step 2: Convert to fraction form
   112,791.60/155,648.16 = 65,046.96/x
3. Step 3: Cross multiply
   112,791.60x = 155,648.16 × 65,046.96
4. Step 4: Simplify right side
   112,791.60x = 10,124,439,637.59
5. Step 5: Solve for x
   x = 10,124,439,637.59/112,791.60
6. Step 6: Final answer
   x = 89,762.35