Finding the Fourth Proportional to 65,627.69, 90,534.69 and 42,956.69

Step by Step Solution

1. Step 1: Write the proportion equation
   65,627.69 : 90,534.69 = 42,956.69 : x
2. Step 2: Convert to fraction form
   65,627.69/90,534.69 = 42,956.69/x
3. Step 3: Cross multiply
   65,627.69x = 90,534.69 × 42,956.69
4. Step 4: Simplify right side
   65,627.69x = 3,889,070,159.90
5. Step 5: Solve for x
   x = 3,889,070,159.90/65,627.69
6. Step 6: Final answer
   x = 59,259.60