Finding the Fourth Proportional to 83,792.64, 115,499.52 and 63,583.68

Step by Step Solution

1. Step 1: Write the proportion equation
   83,792.64 : 115,499.52 = 63,583.68 : x
2. Step 2: Convert to fraction form
   83,792.64/115,499.52 = 63,583.68/x
3. Step 3: Cross multiply
   83,792.64x = 115,499.52 × 63,583.68
4. Step 4: Simplify right side
   83,792.64x = 7,343,884,519.83
5. Step 5: Solve for x
   x = 7,343,884,519.83/83,792.64
6. Step 6: Final answer
   x = 87,643.55