Finding the Fourth Proportional to 65,307.56, 90,124.02 and 35,499.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,307.56 : 90,124.02 = 35,499.56 : x
2. Step 2: Convert to fraction form
   65,307.56/90,124.02 = 35,499.56/x
3. Step 3: Cross multiply
   65,307.56x = 90,124.02 × 35,499.56
4. Step 4: Simplify right side
   65,307.56x = 3,199,363,055.43
5. Step 5: Solve for x
   x = 3,199,363,055.43/65,307.56
6. Step 6: Final answer
   x = 48,989.17