Finding the Fourth Proportional to 55,131.86, 76,124.82 and 42,364.91

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.86 : 76,124.82 = 42,364.91 : x
2. Step 2: Convert to fraction form
   55,131.86/76,124.82 = 42,364.91/x
3. Step 3: Cross multiply
   55,131.86x = 76,124.82 × 42,364.91
4. Step 4: Simplify right side
   55,131.86x = 3,225,021,148.07
5. Step 5: Solve for x
   x = 3,225,021,148.07/55,131.86
6. Step 6: Final answer
   x = 58,496.51