Finding the Fourth Proportional to 78,038.01, 107,692.47 and 42,227.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,038.01 : 107,692.47 = 42,227.91 : x
2. Step 2: Convert to fraction form
   78,038.01/107,692.47 = 42,227.91/x
3. Step 3: Cross multiply
   78,038.01x = 107,692.47 × 42,227.91
4. Step 4: Simplify right side
   78,038.01x = 4,547,627,930.84
5. Step 5: Solve for x
   x = 4,547,627,930.84/78,038.01
6. Step 6: Final answer
   x = 58,274.52