Finding the Fourth Proportional to 112,685.34, 168,778.86 and 77,062.24

Step by Step Solution

1. Step 1: Write the proportion equation
   112,685.34 : 168,778.86 = 77,062.24 : x
2. Step 2: Convert to fraction form
   112,685.34/168,778.86 = 77,062.24/x
3. Step 3: Cross multiply
   112,685.34x = 168,778.86 × 77,062.24
4. Step 4: Simplify right side
   112,685.34x = 13,006,477,016.25
5. Step 5: Solve for x
   x = 13,006,477,016.25/112,685.34
6. Step 6: Final answer
   x = 115,422.97