Finding the Fourth Proportional to 109,060.63, 163,678.43 and 56,485.15

Step by Step Solution

1. Step 1: Write the proportion equation
   109,060.63 : 163,678.43 = 56,485.15 : x
2. Step 2: Convert to fraction form
   109,060.63/163,678.43 = 56,485.15/x
3. Step 3: Cross multiply
   109,060.63x = 163,678.43 × 56,485.15
4. Step 4: Simplify right side
   109,060.63x = 9,245,400,670.31
5. Step 5: Solve for x
   x = 9,245,400,670.31/109,060.63
6. Step 6: Final answer
   x = 84,773.04