Finding the Fourth Proportional to 78,001.84, 107,642.41 and 42,191.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,001.84 : 107,642.41 = 42,191.74 : x
2. Step 2: Convert to fraction form
   78,001.84/107,642.41 = 42,191.74/x
3. Step 3: Cross multiply
   78,001.84x = 107,642.41 × 42,191.74
4. Step 4: Simplify right side
   78,001.84x = 4,541,620,575.69
5. Step 5: Solve for x
   x = 4,541,620,575.69/78,001.84
6. Step 6: Final answer
   x = 58,224.53