Finding the Fourth Proportional to 90,663.17, 135,994.82 and 34,490.34

Step by Step Solution

1. Step 1: Write the proportion equation
   90,663.17 : 135,994.82 = 34,490.34 : x
2. Step 2: Convert to fraction form
   90,663.17/135,994.82 = 34,490.34/x
3. Step 3: Cross multiply
   90,663.17x = 135,994.82 × 34,490.34
4. Step 4: Simplify right side
   90,663.17x = 4,690,507,407.59
5. Step 5: Solve for x
   x = 4,690,507,407.59/90,663.17
6. Step 6: Final answer
   x = 51,735.54