Finding the Fourth Proportional to 66,088.18, 91,179.48 and 42,228.82

Step by Step Solution

1. Step 1: Write the proportion equation
   66,088.18 : 91,179.48 = 42,228.82 : x
2. Step 2: Convert to fraction form
   66,088.18/91,179.48 = 42,228.82/x
3. Step 3: Cross multiply
   66,088.18x = 91,179.48 × 42,228.82
4. Step 4: Simplify right side
   66,088.18x = 3,850,401,848.61
5. Step 5: Solve for x
   x = 3,850,401,848.61/66,088.18
6. Step 6: Final answer
   x = 58,261.58