Finding the Fourth Proportional to 112,685.01, 155,512.80 and 64,941.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,685.01 : 155,512.80 = 64,941.42 : x
2. Step 2: Convert to fraction form
   112,685.01/155,512.80 = 64,941.42/x
3. Step 3: Cross multiply
   112,685.01x = 155,512.80 × 64,941.42
4. Step 4: Simplify right side
   112,685.01x = 10,099,222,060.18
5. Step 5: Solve for x
   x = 10,099,222,060.18/112,685.01
6. Step 6: Final answer
   x = 89,623.47