Finding the Fourth Proportional to 77,858.94, 107,445.31 and 42,048.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,858.94 : 107,445.31 = 42,048.96 : x
2. Step 2: Convert to fraction form
   77,858.94/107,445.31 = 42,048.96/x
3. Step 3: Cross multiply
   77,858.94x = 107,445.31 × 42,048.96
4. Step 4: Simplify right side
   77,858.94x = 4,517,963,647.50
5. Step 5: Solve for x
   x = 4,517,963,647.50/77,858.94
6. Step 6: Final answer
   x = 58,027.55