Finding the Fourth Proportional to 89,210.88, 123,109.17 and 55,210.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,210.88 : 123,109.17 = 55,210.32 : x
2. Step 2: Convert to fraction form
   89,210.88/123,109.17 = 55,210.32/x
3. Step 3: Cross multiply
   89,210.88x = 123,109.17 × 55,210.32
4. Step 4: Simplify right side
   89,210.88x = 6,796,896,670.63
5. Step 5: Solve for x
   x = 6,796,896,670.63/89,210.88
6. Step 6: Final answer
   x = 76,189.10