Finding the Fourth Proportional to 76,078.76, 104,980.62 and 42,081.86

Step by Step Solution

1. Step 1: Write the proportion equation
   76,078.76 : 104,980.62 = 42,081.86 : x
2. Step 2: Convert to fraction form
   76,078.76/104,980.62 = 42,081.86/x
3. Step 3: Cross multiply
   76,078.76x = 104,980.62 × 42,081.86
4. Step 4: Simplify right side
   76,078.76x = 4,417,779,753.55
5. Step 5: Solve for x
   x = 4,417,779,753.55/76,078.76
6. Step 6: Final answer
   x = 58,068.50