Finding the Fourth Proportional to 77,380.82, 116,104.04 and 42,279.47

Step by Step Solution

1. Step 1: Write the proportion equation
   77,380.82 : 116,104.04 = 42,279.47 : x
2. Step 2: Convert to fraction form
   77,380.82/116,104.04 = 42,279.47/x
3. Step 3: Cross multiply
   77,380.82x = 116,104.04 × 42,279.47
4. Step 4: Simplify right side
   77,380.82x = 4,908,817,513.47
5. Step 5: Solve for x
   x = 4,908,817,513.47/77,380.82
6. Step 6: Final answer
   x = 63,437.13