Finding the Fourth Proportional to 77,861.83, 107,449.28 and 42,051.83

Step by Step Solution

1. Step 1: Write the proportion equation
   77,861.83 : 107,449.28 = 42,051.83 : x
2. Step 2: Convert to fraction form
   77,861.83/107,449.28 = 42,051.83/x
3. Step 3: Cross multiply
   77,861.83x = 107,449.28 × 42,051.83
4. Step 4: Simplify right side
   77,861.83x = 4,518,439,409.52
5. Step 5: Solve for x
   x = 4,518,439,409.52/77,861.83
6. Step 6: Final answer
   x = 58,031.51