Finding the Fourth Proportional to 77,881.80, 107,476.80 and 42,071.82

Step by Step Solution

1. Step 1: Write the proportion equation
   77,881.80 : 107,476.80 = 42,071.82 : x
2. Step 2: Convert to fraction form
   77,881.80/107,476.80 = 42,071.82/x
3. Step 3: Cross multiply
   77,881.80x = 107,476.80 × 42,071.82
4. Step 4: Simplify right side
   77,881.80x = 4,521,744,583.78
5. Step 5: Solve for x
   x = 4,521,744,583.78/77,881.80
6. Step 6: Final answer
   x = 58,059.07