Finding the Fourth Proportional to 102,054.88, 153,085.20 and 28,182.88

Step by Step Solution

1. Step 1: Write the proportion equation
   102,054.88 : 153,085.20 = 28,182.88 : x
2. Step 2: Convert to fraction form
   102,054.88/153,085.20 = 28,182.88/x
3. Step 3: Cross multiply
   102,054.88x = 153,085.20 × 28,182.88
4. Step 4: Simplify right side
   102,054.88x = 4,314,381,821.38
5. Step 5: Solve for x
   x = 4,314,381,821.38/102,054.88
6. Step 6: Final answer
   x = 42,275.12