Finding the Fourth Proportional to 106,638.31, 147,164.50 and 63,068.21

Step by Step Solution

1. Step 1: Write the proportion equation
   106,638.31 : 147,164.50 = 63,068.21 : x
2. Step 2: Convert to fraction form
   106,638.31/147,164.50 = 63,068.21/x
3. Step 3: Cross multiply
   106,638.31x = 147,164.50 × 63,068.21
4. Step 4: Simplify right side
   106,638.31x = 9,281,401,590.55
5. Step 5: Solve for x
   x = 9,281,401,590.55/106,638.31
6. Step 6: Final answer
   x = 87,036.28