Finding the Fourth Proportional to 77,816.86, 116,830.23 and 49,791.62

Step by Step Solution

1. Step 1: Write the proportion equation
   77,816.86 : 116,830.23 = 49,791.62 : x
2. Step 2: Convert to fraction form
   77,816.86/116,830.23 = 49,791.62/x
3. Step 3: Cross multiply
   77,816.86x = 116,830.23 × 49,791.62
4. Step 4: Simplify right side
   77,816.86x = 5,817,166,541.15
5. Step 5: Solve for x
   x = 5,817,166,541.15/77,816.86
6. Step 6: Final answer
   x = 74,754.58