Finding the Fourth Proportional to 70,767.86, 97,577.82 and 56,416.46

Step by Step Solution

1. Step 1: Write the proportion equation
   70,767.86 : 97,577.82 = 56,416.46 : x
2. Step 2: Convert to fraction form
   70,767.86/97,577.82 = 56,416.46/x
3. Step 3: Cross multiply
   70,767.86x = 97,577.82 × 56,416.46
4. Step 4: Simplify right side
   70,767.86x = 5,504,995,422.86
5. Step 5: Solve for x
   x = 5,504,995,422.86/70,767.86
6. Step 6: Final answer
   x = 77,789.49