Finding the Fourth Proportional to 109,388.52, 164,051.42 and 42,781.48

Step by Step Solution

1. Step 1: Write the proportion equation
   109,388.52 : 164,051.42 = 42,781.48 : x
2. Step 2: Convert to fraction form
   109,388.52/164,051.42 = 42,781.48/x
3. Step 3: Cross multiply
   109,388.52x = 164,051.42 × 42,781.48
4. Step 4: Simplify right side
   109,388.52x = 7,018,362,543.70
5. Step 5: Solve for x
   x = 7,018,362,543.70/109,388.52
6. Step 6: Final answer
   x = 64,159.96