Finding the Fourth Proportional to 55,131.90, 76,124.87 and 42,364.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.90 : 76,124.87 = 42,364.96 : x
2. Step 2: Convert to fraction form
   55,131.90/76,124.87 = 42,364.96/x
3. Step 3: Cross multiply
   55,131.90x = 76,124.87 × 42,364.96
4. Step 4: Simplify right side
   55,131.90x = 3,225,027,072.56
5. Step 5: Solve for x
   x = 3,225,027,072.56/55,131.90
6. Step 6: Final answer
   x = 58,496.57