Finding the Fourth Proportional to 77,393.82, 116,090.72 and 61,909.86

Step by Step Solution

1. Step 1: Write the proportion equation
   77,393.82 : 116,090.72 = 61,909.86 : x
2. Step 2: Convert to fraction form
   77,393.82/116,090.72 = 61,909.86/x
3. Step 3: Cross multiply
   77,393.82x = 116,090.72 × 61,909.86
4. Step 4: Simplify right side
   77,393.82x = 7,187,160,222.50
5. Step 5: Solve for x
   x = 7,187,160,222.50/77,393.82
6. Step 6: Final answer
   x = 92,864.78