Finding the Fourth Proportional to 77,892.59, 107,505.78 and 74,342.82

Step by Step Solution

1. Step 1: Write the proportion equation
   77,892.59 : 107,505.78 = 74,342.82 : x
2. Step 2: Convert to fraction form
   77,892.59/107,505.78 = 74,342.82/x
3. Step 3: Cross multiply
   77,892.59x = 107,505.78 × 74,342.82
4. Step 4: Simplify right side
   77,892.59x = 7,992,282,975.86
5. Step 5: Solve for x
   x = 7,992,282,975.86/77,892.59
6. Step 6: Final answer
   x = 102,606.46