Finding the Fourth Proportional to 147,591.85, 221,364.01 and 42,386.89

Step by Step Solution

1. Step 1: Write the proportion equation
   147,591.85 : 221,364.01 = 42,386.89 : x
2. Step 2: Convert to fraction form
   147,591.85/221,364.01 = 42,386.89/x
3. Step 3: Cross multiply
   147,591.85x = 221,364.01 × 42,386.89
4. Step 4: Simplify right side
   147,591.85x = 9,382,931,941.83
5. Step 5: Solve for x
   x = 9,382,931,941.83/147,591.85
6. Step 6: Final answer
   x = 63,573.51