Finding the Fourth Proportional to 77,968.63, 107,597.82 and 43,978.87

Step by Step Solution

1. Step 1: Write the proportion equation
   77,968.63 : 107,597.82 = 43,978.87 : x
2. Step 2: Convert to fraction form
   77,968.63/107,597.82 = 43,978.87/x
3. Step 3: Cross multiply
   77,968.63x = 107,597.82 × 43,978.87
4. Step 4: Simplify right side
   77,968.63x = 4,732,030,538.06
5. Step 5: Solve for x
   x = 4,732,030,538.06/77,968.63
6. Step 6: Final answer
   x = 60,691.47