Finding the Fourth Proportional to 89,106.63, 122,888.64 and 55,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,106.63 : 122,888.64 = 55,109.72 : x
2. Step 2: Convert to fraction form
   89,106.63/122,888.64 = 55,109.72/x
3. Step 3: Cross multiply
   89,106.63x = 122,888.64 × 55,109.72
4. Step 4: Simplify right side
   89,106.63x = 6,772,357,651.59
5. Step 5: Solve for x
   x = 6,772,357,651.59/89,106.63
6. Step 6: Final answer
   x = 76,002.85