Finding the Fourth Proportional to 78,375.30, 117,613.35 and 43,340.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,375.30 : 117,613.35 = 43,340.10 : x
2. Step 2: Convert to fraction form
   78,375.30/117,613.35 = 43,340.10/x
3. Step 3: Cross multiply
   78,375.30x = 117,613.35 × 43,340.10
4. Step 4: Simplify right side
   78,375.30x = 5,097,374,350.34
5. Step 5: Solve for x
   x = 5,097,374,350.34/78,375.30
6. Step 6: Final answer
   x = 65,038.02