Finding the Fourth Proportional to 77,051.48, 106,321.83 and 42,591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   77,051.48 : 106,321.83 = 42,591.56 : x
2. Step 2: Convert to fraction form
   77,051.48/106,321.83 = 42,591.56/x
3. Step 3: Cross multiply
   77,051.48x = 106,321.83 × 42,591.56
4. Step 4: Simplify right side
   77,051.48x = 4,528,412,309.53
5. Step 5: Solve for x
   x = 4,528,412,309.53/77,051.48
6. Step 6: Final answer
   x = 58,771.26