Finding the Fourth Proportional to 103,782.60, 155,870.46 and 64,613.16

Step by Step Solution

1. Step 1: Write the proportion equation
   103,782.60 : 155,870.46 = 64,613.16 : x
2. Step 2: Convert to fraction form
   103,782.60/155,870.46 = 64,613.16/x
3. Step 3: Cross multiply
   103,782.60x = 155,870.46 × 64,613.16
4. Step 4: Simplify right side
   103,782.60x = 10,071,282,971.25
5. Step 5: Solve for x
   x = 10,071,282,971.25/103,782.60
6. Step 6: Final answer
   x = 97,042.11