Finding the Fourth Proportional to 89,061.48, 122,925.06 and 55,521

Step by Step Solution

1. Step 1: Write the proportion equation
   89,061.48 : 122,925.06 = 55,521 : x
2. Step 2: Convert to fraction form
   89,061.48/122,925.06 = 55,521/x
3. Step 3: Cross multiply
   89,061.48x = 122,925.06 × 55,521
4. Step 4: Simplify right side
   89,061.48x = 6,824,922,256.26
5. Step 5: Solve for x
   x = 6,824,922,256.26/89,061.48
6. Step 6: Final answer
   x = 76,631.58