Finding the Fourth Proportional to 112,686.51, 155,514.87 and 64,942.93

Step by Step Solution

1. Step 1: Write the proportion equation
   112,686.51 : 155,514.87 = 64,942.93 : x
2. Step 2: Convert to fraction form
   112,686.51/155,514.87 = 64,942.93/x
3. Step 3: Cross multiply
   112,686.51x = 155,514.87 × 64,942.93
4. Step 4: Simplify right side
   112,686.51x = 10,099,591,316.37
5. Step 5: Solve for x
   x = 10,099,591,316.37/112,686.51
6. Step 6: Final answer
   x = 89,625.56