Finding the Fourth Proportional to 112,377.07, 155,085.07 and 64,630.45

Step by Step Solution

1. Step 1: Write the proportion equation
   112,377.07 : 155,085.07 = 64,630.45 : x
2. Step 2: Convert to fraction form
   112,377.07/155,085.07 = 64,630.45/x
3. Step 3: Cross multiply
   112,377.07x = 155,085.07 × 64,630.45
4. Step 4: Simplify right side
   112,377.07x = 10,023,217,862.38
5. Step 5: Solve for x
   x = 10,023,217,862.38/112,377.07
6. Step 6: Final answer
   x = 89,192.73