Finding the Fourth Proportional to 116,781.42, 159,991.12 and 112,408.06

Step by Step Solution

1. Step 1: Write the proportion equation
   116,781.42 : 159,991.12 = 112,408.06 : x
2. Step 2: Convert to fraction form
   116,781.42/159,991.12 = 112,408.06/x
3. Step 3: Cross multiply
   116,781.42x = 159,991.12 × 112,408.06
4. Step 4: Simplify right side
   116,781.42x = 17,984,291,416.43
5. Step 5: Solve for x
   x = 17,984,291,416.43/116,781.42
6. Step 6: Final answer
   x = 153,999.60